97128620 has 24 divisors (see below), whose sum is σ = 204183504. Its totient is φ = 38810816.

The previous prime is 97128607. The next prime is 97128643. The reversal of 97128620 is 2682179.

It is a happy number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 23639 + ... + 27441.

It is an arithmetic number, because the mean of its divisors is an integer number (8507646).

Almost surely, 2^97128620 is an apocalyptic number.

It is an amenable number.

97128620 is an abundant number, since it is smaller than the sum of its proper divisors (107054884).

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

97128620 is a wasteful number, since it uses less digits than its factorization.

97128620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5089 (or 5087 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 97128620 is about 9855.3853298590. The cubic root of 97128620 is about 459.6730821472.

The spelling of 97128620 in words is "ninety-seven million, one hundred twenty-eight thousand, six hundred twenty".