97889420 has 24 divisors (see below), whose sum is σ = 211125264. Its totient is φ = 38097216.

The previous prime is 97889419. The next prime is 97889431. The reversal of 97889420 is 2498879.

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, 65402 + ... + 66881.

It is an arithmetic number, because the mean of its divisors is an integer number (8796886).

Almost surely, 2^97889420 is an apocalyptic number.

It is an amenable number.

97889420 is an abundant number, since it is smaller than the sum of its proper divisors (113235844).

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

97889420 is a wasteful number, since it uses less digits than its factorization.

97889420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132329 (or 132327 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 97889420 is about 9893.9082267828. The cubic root of 97889420 is about 460.8701550831.

The spelling of 97889420 in words is "ninety-seven million, eight hundred eighty-nine thousand, four hundred twenty".