89788140 has 72 divisors (see below), whose sum is σ = 293315568. Its totient is φ = 22101120.

The previous prime is 89788133. The next prime is 89788151. The reversal of 89788140 is 4188798.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16846 + ... + 21525.

Almost surely, 2^89788140 is an apocalyptic number.

It is an amenable number.

89788140 is an abundant number, since it is smaller than the sum of its proper divisors (203527428).

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

89788140 is a wasteful number, since it uses less digits than its factorization.

89788140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38399 (or 38394 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 89788140 is about 9475.6603991490. The cubic root of 89788140 is about 447.7885574810.

The spelling of 89788140 in words is "eighty-nine million, seven hundred eighty-eight thousand, one hundred forty".