97545072 has 40 divisors (see below), whose sum is σ = 252503680. Its totient is φ = 32448960.

The previous prime is 97545011. The next prime is 97545073. The reversal of 97545072 is 27054579.

It is a self number, because there is not a number n which added to its sum of digits gives 97545072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97545073) 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, 25629 + ... + 29187.

It is an arithmetic number, because the mean of its divisors is an integer number (6312592).

Almost surely, 2^97545072 is an apocalyptic number.

It is an amenable number.

97545072 is an abundant number, since it is smaller than the sum of its proper divisors (154958608).

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

97545072 is a wasteful number, since it uses less digits than its factorization.

97545072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141 (or 4135 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 97545072 is about 9876.4908747996. The cubic root of 97545072 is about 460.3291154488.

The spelling of 97545072 in words is "ninety-seven million, five hundred forty-five thousand, seventy-two".