89639020 has 24 divisors (see below), whose sum is σ = 190360800. Its totient is φ = 35452032.

The previous prime is 89639003. The next prime is 89639021. The reversal of 89639020 is 2093698.

It is not an unprimeable number, because it can be changed into a prime (89639021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23400 + ... + 26959.

It is an arithmetic number, because the mean of its divisors is an integer number (7931700).

Almost surely, 2^89639020 is an apocalyptic number.

It is an amenable number.

89639020 is an abundant number, since it is smaller than the sum of its proper divisors (100721780).

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

89639020 is a wasteful number, since it uses less digits than its factorization.

89639020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50457 (or 50455 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 89639020 is about 9467.7885485471. The cubic root of 89639020 is about 447.5405246115.

The spelling of 89639020 in words is "eighty-nine million, six hundred thirty-nine thousand, twenty".