89430431021 has 8 divisors (see below), whose sum is σ = 89976519360. Its totient is φ = 88884468928.

The previous prime is 89430431017. The next prime is 89430431033. The reversal of 89430431021 is 12013403498.

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 89430431021 - 2² = 89430431017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89430431821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666805 + ... + 1719621.

It is an arithmetic number, because the mean of its divisors is an integer number (11247064920).

Almost surely, 2^89430431021 is an apocalyptic number.

It is an amenable number.

89430431021 is a deficient number, since it is larger than the sum of its proper divisors (546088339).

89430431021 is a wasteful number, since it uses less digits than its factorization.

89430431021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63123.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 89430431021 in words is "eighty-nine billion, four hundred thirty million, four hundred thirty-one thousand, twenty-one".