97609761 has 6 divisors (see below), whose sum is σ = 140991890. Its totient is φ = 65073168.

The previous prime is 97609717. The next prime is 97609763. The reversal of 97609761 is 16790679.

It can be written as a sum of positive squares in only one way, i.e., 67568400 + 30041361 = 8220^2 + 5481^2 .

It is not a de Polignac number, because 97609761 - 2⁶ = 97609697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97609763) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 5422756 + ... + 5422773.

Almost surely, 2^97609761 is an apocalyptic number.

It is an amenable number.

97609761 is a deficient number, since it is larger than the sum of its proper divisors (43382129).

97609761 is a wasteful number, since it uses less digits than its factorization.

97609761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10845535 (or 10845532 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 97609761 is about 9879.7652300042. The cubic root of 97609761 is about 460.4308518369.

The spelling of 97609761 in words is "ninety-seven million, six hundred nine thousand, seven hundred sixty-one".