206480965 has 4 divisors (see below), whose sum is σ = 247777164. Its totient is φ = 165184768.

The previous prime is 206480947. The next prime is 206480983. The reversal of 206480965 is 569084602.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 569084602 = 2 ⋅284542301.

It is an interprime number because it is at equal distance from previous prime (206480947) and next prime (206480983).

It can be written as a sum of positive squares in 2 ways, for example, as 140968129 + 65512836 = 11873^2 + 8094^2 .

It is a cyclic number.

It is not a de Polignac number, because 206480965 - 2⁷ = 206480837 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20648092 + ... + 20648101.

It is an arithmetic number, because the mean of its divisors is an integer number (61944291).

Almost surely, 2^206480965 is an apocalyptic number.

It is an amenable number.

206480965 is a deficient number, since it is larger than the sum of its proper divisors (41296199).

206480965 is an equidigital number, since it uses as much as digits as its factorization.

206480965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41296198.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 206480965 is about 14369.4455355800. The cubic root of 206480965 is about 591.0533371468.

The spelling of 206480965 in words is "two hundred six million, four hundred eighty thousand, nine hundred sixty-five".