97657753 has 4 divisors (see below), whose sum is σ = 97686820. Its totient is φ = 97628688.

The previous prime is 97657711. The next prime is 97657771. The reversal of 97657753 is 35775679.

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 65076489 + 32581264 = 8067^2 + 5708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97657753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97657697 and 97657706.

It is not an unprimeable number, because it can be changed into a prime (97657783) 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 3 ways as a sum of consecutive naturals, for example, 8718 + ... + 16471.

It is an arithmetic number, because the mean of its divisors is an integer number (24421705).

Almost surely, 2^97657753 is an apocalyptic number.

It is an amenable number.

97657753 is a deficient number, since it is larger than the sum of its proper divisors (29067).

97657753 is a wasteful number, since it uses less digits than its factorization.

97657753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29066.

The product of its digits is 1389150, while the sum is 49.

The square root of 97657753 is about 9882.1937341868. The cubic root of 97657753 is about 460.5062998136.

The spelling of 97657753 in words is "ninety-seven million, six hundred fifty-seven thousand, seven hundred fifty-three".