97888240 has 20 divisors (see below), whose sum is σ = 227590344. Its totient is φ = 39155264.

The previous prime is 97888237. The next prime is 97888267. The reversal of 97888240 is 4288879.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611722 + ... + 611881.

Almost surely, 2^97888240 is an apocalyptic number.

It is an amenable number.

97888240 is an abundant number, since it is smaller than the sum of its proper divisors (129702104).

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

97888240 is a wasteful number, since it uses less digits than its factorization.

97888240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223616 (or 1223610 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 97888240 is about 9893.8485939497. The cubic root of 97888240 is about 460.8683032351.

The spelling of 97888240 in words is "ninety-seven million, eight hundred eighty-eight thousand, two hundred forty".