97939647 has 24 divisors (see below), whose sum is σ = 154451024. Its totient is φ = 59439744.

The previous prime is 97939631. The next prime is 97939651. The reversal of 97939647 is 74693979.

It is not a de Polignac number, because 97939647 - 2⁴ = 97939631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97939593 and 97939602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97939607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2808 + ... + 14274.

Almost surely, 2^97939647 is an apocalyptic number.

97939647 is a deficient number, since it is larger than the sum of its proper divisors (56511377).

97939647 is a wasteful number, since it uses less digits than its factorization.

97939647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11559 (or 11556 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 97939647 is about 9896.4461803215. The cubic root of 97939647 is about 460.9489656679.

The spelling of 97939647 in words is "ninety-seven million, nine hundred thirty-nine thousand, six hundred forty-seven".