97284720 has 80 divisors (see below), whose sum is σ = 324791712. Its totient is φ = 23946240.

The previous prime is 97284713. The next prime is 97284739. The reversal of 97284720 is 2748279.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (39).

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 15 ways as a sum of consecutive naturals, for example, 12471 + ... + 18710.

Almost surely, 2^97284720 is an apocalyptic number.

It is an amenable number.

97284720 is an abundant number, since it is smaller than the sum of its proper divisors (227506992).

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

97284720 is a wasteful number, since it uses less digits than its factorization.

97284720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31210 (or 31204 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 97284720 is about 9863.3016784442. The cubic root of 97284720 is about 459.9192044612.

The spelling of 97284720 in words is "ninety-seven million, two hundred eighty-four thousand, seven hundred twenty".