90698432 has 28 divisors (see below), whose sum is σ = 196343016. Its totient is φ = 41226240.

The previous prime is 90698431. The next prime is 90698471. The reversal of 90698432 is 23489609.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 90698432.

It is not an unprimeable number, because it can be changed into a prime (90698431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63713 + ... + 65120.

Almost surely, 2^90698432 is an apocalyptic number.

It is an amenable number.

90698432 is an abundant number, since it is smaller than the sum of its proper divisors (105644584).

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

90698432 is a wasteful number, since it uses less digits than its factorization.

90698432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128856 (or 128846 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 90698432 is about 9523.5724389538. The cubic root of 90698432 is about 449.2967319453.

The spelling of 90698432 in words is "ninety million, six hundred ninety-eight thousand, four hundred thirty-two".