104392731 has 16 divisors (see below), whose sum is σ = 141015168. Its totient is φ = 68688000.

The previous prime is 104392727. The next prime is 104392741. The reversal of 104392731 is 137293401.

It is not a de Polignac number, because 104392731 - 2² = 104392727 is a prime.

It is a super-2 number, since 2×104392731² = 21795684571276722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104392711) 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 15 ways as a sum of consecutive naturals, for example, 128316 + ... + 129126.

It is an arithmetic number, because the mean of its divisors is an integer number (8813448).

Almost surely, 2^104392731 is an apocalyptic number.

104392731 is a deficient number, since it is larger than the sum of its proper divisors (36622437).

104392731 is a wasteful number, since it uses less digits than its factorization.

104392731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 104392731 is about 10217.2761047160. The cubic root of 104392731 is about 470.8581439993.

The spelling of 104392731 in words is "one hundred four million, three hundred ninety-two thousand, seven hundred thirty-one".