97665603 has 16 divisors (see below), whose sum is σ = 149318400. Its totient is φ = 55623456.

The previous prime is 97665587. The next prime is 97665619. The reversal of 97665603 is 30656679.

It is an interprime number because it is at equal distance from previous prime (97665587) and next prime (97665619).

It is not a de Polignac number, because 97665603 - 2⁴ = 97665587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97665103) 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 15 ways as a sum of consecutive naturals, for example, 1128 + ... + 14021.

It is an arithmetic number, because the mean of its divisors is an integer number (9332400).

Almost surely, 2^97665603 is an apocalyptic number.

97665603 is a deficient number, since it is larger than the sum of its proper divisors (51652797).

97665603 is a wasteful number, since it uses less digits than its factorization.

97665603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15466.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 97665603 is about 9882.5909052232. The cubic root of 97665603 is about 460.5186384059.

The spelling of 97665603 in words is "ninety-seven million, six hundred sixty-five thousand, six hundred three".