97511028 has 24 divisors (see below), whose sum is σ = 228534432. Its totient is φ = 32359584.

The previous prime is 97511023. The next prime is 97511033. The reversal of 97511028 is 82011579.

It is an interprime number because it is at equal distance from previous prime (97511023) and next prime (97511033).

It is a self number, because there is not a number n which added to its sum of digits gives 97511028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97511023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15175 + ... + 20622.

It is an arithmetic number, because the mean of its divisors is an integer number (9522268).

Almost surely, 2^97511028 is an apocalyptic number.

It is an amenable number.

97511028 is an abundant number, since it is smaller than the sum of its proper divisors (131023404).

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

97511028 is a wasteful number, since it uses less digits than its factorization.

97511028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36031 (or 36029 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 97511028 is about 9874.7672377631. The cubic root of 97511028 is about 460.2755563860.

The spelling of 97511028 in words is "ninety-seven million, five hundred eleven thousand, twenty-eight".