89402731 has 8 divisors (see below), whose sum is σ = 97601328. Its totient is φ = 81216000.

The previous prime is 89402713. The next prime is 89402741. The reversal of 89402731 is 13720498.

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 89402731 - 2¹⁵ = 89369963 is a prime.

It is a super-2 number, since 2×89402731² = 15985696620516722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89402701) 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, 21891 + ... + 25651.

It is an arithmetic number, because the mean of its divisors is an integer number (12200166).

Almost surely, 2^89402731 is an apocalyptic number.

89402731 is a deficient number, since it is larger than the sum of its proper divisors (8198597).

89402731 is a wasteful number, since it uses less digits than its factorization.

89402731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5933.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 89402731 is about 9455.3017402936. The cubic root of 89402731 is about 447.1469387320.

The spelling of 89402731 in words is "eighty-nine million, four hundred two thousand, seven hundred thirty-one".