10909931 has 8 divisors (see below), whose sum is σ = 11365344. Its totient is φ = 10463040.

The previous prime is 10909909. The next prime is 10909939. The reversal of 10909931 is 13990901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10909931 - 2²² = 6715627 is a prime.

It is a super-2 number, since 2×10909931² = 238053188849522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10909939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551 + ... + 4703.

It is an arithmetic number, because the mean of its divisors is an integer number (1420668).

Almost surely, 2^10909931 is an apocalyptic number.

10909931 is a deficient number, since it is larger than the sum of its proper divisors (455413).

10909931 is an equidigital number, since it uses as much as digits as its factorization.

10909931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261.

The product of its (nonzero) digits is 2187, while the sum is 32.

The square root of 10909931 is about 3303.0184680077. The cubic root of 10909931 is about 221.7893397029.

The spelling of 10909931 in words is "ten million, nine hundred nine thousand, nine hundred thirty-one".