90884688 has 20 divisors (see below), whose sum is σ = 234785568. Its totient is φ = 30294880.

The previous prime is 90884687. The next prime is 90884701. The reversal of 90884688 is 88648809.

It is a self number, because there is not a number n which added to its sum of digits gives 90884688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90884687) 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, 946668 + ... + 946763.

Almost surely, 2^90884688 is an apocalyptic number.

It is an amenable number.

90884688 is an abundant number, since it is smaller than the sum of its proper divisors (143900880).

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

90884688 is a wasteful number, since it uses less digits than its factorization.

90884688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893442 (or 1893436 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 51.

The square root of 90884688 is about 9533.3461072175. The cubic root of 90884688 is about 449.6040764481.

The spelling of 90884688 in words is "ninety million, eight hundred eighty-four thousand, six hundred eighty-eight".