97650979 has 4 divisors (see below), whose sum is σ = 99921976. Its totient is φ = 95379984.

The previous prime is 97650977. The next prime is 97650991. The reversal of 97650979 is 97905679.

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

It is a cyclic number.

It is not a de Polignac number, because 97650979 - 2¹ = 97650977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97650977) 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 3 ways as a sum of consecutive naturals, for example, 1135434 + ... + 1135519.

It is an arithmetic number, because the mean of its divisors is an integer number (24980494).

Almost surely, 2^97650979 is an apocalyptic number.

97650979 is a deficient number, since it is larger than the sum of its proper divisors (2270997).

97650979 is a wasteful number, since it uses less digits than its factorization.

97650979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270996.

The product of its (nonzero) digits is 1071630, while the sum is 52.

The square root of 97650979 is about 9881.8509905786. The cubic root of 97650979 is about 460.4956519415.

The spelling of 97650979 in words is "ninety-seven million, six hundred fifty thousand, nine hundred seventy-nine".