97651585 has 4 divisors (see below), whose sum is σ = 117181908. Its totient is φ = 78121264.

The previous prime is 97651577. The next prime is 97651597. The reversal of 97651585 is 58515679.

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 33907329 + 63744256 = 5823^2 + 7984^2 .

It is a cyclic number.

It is not a de Polignac number, because 97651585 - 2³ = 97651577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 9765154 + ... + 9765163.

It is an arithmetic number, because the mean of its divisors is an integer number (29295477).

Almost surely, 2^97651585 is an apocalyptic number.

It is an amenable number.

97651585 is a deficient number, since it is larger than the sum of its proper divisors (19530323).

97651585 is a wasteful number, since it uses less digits than its factorization.

97651585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19530322.

The product of its digits is 378000, while the sum is 46.

The square root of 97651585 is about 9881.8816528028. The cubic root of 97651585 is about 460.4966045170.

The spelling of 97651585 in words is "ninety-seven million, six hundred fifty-one thousand, five hundred eighty-five".