206909484 has 12 divisors (see below), whose sum is σ = 482788824. Its totient is φ = 68969824.

The previous prime is 206909477. The next prime is 206909491. The reversal of 206909484 is 484909602.

It is an interprime number because it is at equal distance from previous prime (206909477) and next prime (206909491).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8621217 + ... + 8621240.

It is an arithmetic number, because the mean of its divisors is an integer number (40232402).

Almost surely, 2^206909484 is an apocalyptic number.

It is an amenable number.

206909484 is an abundant number, since it is smaller than the sum of its proper divisors (275879340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206909484 is a wasteful number, since it uses less digits than its factorization.

206909484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17242464 (or 17242462 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 206909484 is about 14384.3485775338. The cubic root of 206909484 is about 591.4619342525.

The spelling of 206909484 in words is "two hundred six million, nine hundred nine thousand, four hundred eighty-four".