97393720 has 16 divisors (see below), whose sum is σ = 219135960. Its totient is φ = 38957472.

The previous prime is 97393651. The next prime is 97393733. The reversal of 97393720 is 2739379.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 2434843 = 97393720 / (9 + 7 + 3 + 9 + 3 + 7 + 2 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217382 + ... + 1217461.

Almost surely, 2^97393720 is an apocalyptic number.

It is an amenable number.

97393720 is an abundant number, since it is smaller than the sum of its proper divisors (121742240).

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

97393720 is a wasteful number, since it uses less digits than its factorization.

97393720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434854 (or 2434850 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 40.

The square root of 97393720 is about 9868.8256646878. The cubic root of 97393720 is about 460.0909083089.

The spelling of 97393720 in words is "ninety-seven million, three hundred ninety-three thousand, seven hundred twenty".