89737640 has 32 divisors (see below), whose sum is σ = 202819680. Its totient is φ = 35733312.

The previous prime is 89737621. The next prime is 89737663. The reversal of 89737640 is 4673798.

It is a junction number, because it is equal to n+sod(n) for n = 89737591 and 89737600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4139 + ... + 14021.

It is an arithmetic number, because the mean of its divisors is an integer number (6338115).

Almost surely, 2^89737640 is an apocalyptic number.

It is an amenable number.

89737640 is an abundant number, since it is smaller than the sum of its proper divisors (113082040).

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

89737640 is a wasteful number, since it uses less digits than its factorization.

89737640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10121 (or 10117 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 89737640 is about 9472.9953024373. The cubic root of 89737640 is about 447.7045910722.

The spelling of 89737640 in words is "eighty-nine million, seven hundred thirty-seven thousand, six hundred forty".