97636427 has 4 divisors (see below), whose sum is σ = 111584496. Its totient is φ = 83688360.

The previous prime is 97636387. The next prime is 97636439. The reversal of 97636427 is 72463679.

It is a happy number.

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

It is not a de Polignac number, because 97636427 - 2⁸ = 97636171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97636477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6974024 + ... + 6974037.

It is an arithmetic number, because the mean of its divisors is an integer number (27896124).

Almost surely, 2^97636427 is an apocalyptic number.

97636427 is a deficient number, since it is larger than the sum of its proper divisors (13948069).

97636427 is a wasteful number, since it uses less digits than its factorization.

97636427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13948068.

The product of its digits is 381024, while the sum is 44.

The square root of 97636427 is about 9881.1146638423. The cubic root of 97636427 is about 460.4727763708.

The spelling of 97636427 in words is "ninety-seven million, six hundred thirty-six thousand, four hundred twenty-seven".