104489931 has 16 divisors (see below), whose sum is σ = 171471104. Its totient is φ = 55115424.

The previous prime is 104489927. The next prime is 104489947. The reversal of 104489931 is 139984401.

It is not a de Polignac number, because 104489931 - 2² = 104489927 is a prime.

It is a super-2 number, since 2×104489931² = 21836291360769522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 104489931.

It is not an unprimeable number, because it can be changed into a prime (104489971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191101 + ... + 191646.

It is an arithmetic number, because the mean of its divisors is an integer number (10716944).

Almost surely, 2^104489931 is an apocalyptic number.

104489931 is a deficient number, since it is larger than the sum of its proper divisors (66981173).

104489931 is a wasteful number, since it uses less digits than its factorization.

104489931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382770.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 104489931 is about 10222.0316473781. The cubic root of 104489931 is about 471.0042372309.

The spelling of 104489931 in words is "one hundred four million, four hundred eighty-nine thousand, nine hundred thirty-one".