20360969 has 4 divisors (see below), whose sum is σ = 20857620. Its totient is φ = 19864320.

The previous prime is 20360953. The next prime is 20360971. The reversal of 20360969 is 96906302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96906302 = 2 ⋅48453151.

It can be written as a sum of positive squares in 2 ways, for example, as 5345344 + 15015625 = 2312^2 + 3875^2 .

It is a cyclic number.

It is not a de Polignac number, because 20360969 - 2⁴ = 20360953 is a prime.

It is a super-2 number, since 2×20360969² = 829138117237922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20360909) by changing a digit.

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, 248264 + ... + 248345.

It is an arithmetic number, because the mean of its divisors is an integer number (5214405).

Almost surely, 2^20360969 is an apocalyptic number.

It is an amenable number.

20360969 is a deficient number, since it is larger than the sum of its proper divisors (496651).

20360969 is an equidigital number, since it uses as much as digits as its factorization.

20360969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496650.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 20360969 is about 4512.3130432185. The cubic root of 20360969 is about 273.0650687747.

The spelling of 20360969 in words is "twenty million, three hundred sixty thousand, nine hundred sixty-nine".