97720752 has 40 divisors (see below), whose sum is σ = 253215936. Its totient is φ = 32474176.

The previous prime is 97720751. The next prime is 97720769. The reversal of 97720752 is 25702779.

It is a self number, because there is not a number n which added to its sum of digits gives 97720752.

It is not an unprimeable number, because it can be changed into a prime (97720751) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13723 + ... + 19589.

Almost surely, 2^97720752 is an apocalyptic number.

It is an amenable number.

97720752 is an abundant number, since it is smaller than the sum of its proper divisors (155495184).

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

97720752 is a wasteful number, since it uses less digits than its factorization.

97720752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6225 (or 6219 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 97720752 is about 9885.3807210446. The cubic root of 97720752 is about 460.6053027066.

The spelling of 97720752 in words is "ninety-seven million, seven hundred twenty thousand, seven hundred fifty-two".