97531528 has 8 divisors (see below), whose sum is σ = 182871630. Its totient is φ = 48765760.

The previous prime is 97531513. The next prime is 97531529. The reversal of 97531528 is 82513579.

It can be written as a sum of positive squares in only one way, i.e., 97259044 + 272484 = 9862^2 + 522^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (97531529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6095713 + ... + 6095728.

Almost surely, 2^97531528 is an apocalyptic number.

It is an amenable number.

97531528 is a deficient number, since it is larger than the sum of its proper divisors (85340102).

97531528 is a wasteful number, since it uses less digits than its factorization.

97531528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12191447 (or 12191443 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 97531528 is about 9875.8051823636. The cubic root of 97531528 is about 460.3078091064.

The spelling of 97531528 in words is "ninety-seven million, five hundred thirty-one thousand, five hundred twenty-eight".