97961751 has 16 divisors (see below), whose sum is σ = 148669920. Its totient is φ = 63714240.

The previous prime is 97961737. The next prime is 97961789. The reversal of 97961751 is 15716979.

It is not a de Polignac number, because 97961751 - 2⁹ = 97961239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97961697 and 97961706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97961711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43140 + ... + 45353.

It is an arithmetic number, because the mean of its divisors is an integer number (9291870).

Almost surely, 2^97961751 is an apocalyptic number.

97961751 is a deficient number, since it is larger than the sum of its proper divisors (50708169).

97961751 is a wasteful number, since it uses less digits than its factorization.

97961751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88543 (or 88537 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 97961751 is about 9897.5628818412. The cubic root of 97961751 is about 460.9836402518.

The spelling of 97961751 in words is "ninety-seven million, nine hundred sixty-one thousand, seven hundred fifty-one".