89991704 has 16 divisors (see below), whose sum is σ = 184074120. Its totient is φ = 40905280.

The previous prime is 89991683. The next prime is 89991739. The reversal of 89991704 is 40719998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511229 + ... + 511404.

Almost surely, 2^89991704 is an apocalyptic number.

It is an amenable number.

89991704 is an abundant number, since it is smaller than the sum of its proper divisors (94082416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89991704 is a wasteful number, since it uses less digits than its factorization.

89991704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022650 (or 1022646 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 89991704 is about 9486.3957328376. The cubic root of 89991704 is about 448.1267047016.

The spelling of 89991704 in words is "eighty-nine million, nine hundred ninety-one thousand, seven hundred four".