97928653 has 4 divisors (see below), whose sum is σ = 103689180. Its totient is φ = 92168128.

The previous prime is 97928627. The next prime is 97928669. The reversal of 97928653 is 35682979.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84400969 + 13527684 = 9187^2 + 3678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97928653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97928597 and 97928606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97928053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2880238 + ... + 2880271.

It is an arithmetic number, because the mean of its divisors is an integer number (25922295).

Almost surely, 2^97928653 is an apocalyptic number.

It is an amenable number.

97928653 is a deficient number, since it is larger than the sum of its proper divisors (5760527).

97928653 is a wasteful number, since it uses less digits than its factorization.

97928653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760526.

The product of its digits is 816480, while the sum is 49.

The square root of 97928653 is about 9895.8907128161. The cubic root of 97928653 is about 460.9317174178.

The spelling of 97928653 in words is "ninety-seven million, nine hundred twenty-eight thousand, six hundred fifty-three".