97646621 has 8 divisors (see below), whose sum is σ = 101443584. Its totient is φ = 93890160.

The previous prime is 97646599. The next prime is 97646639. The reversal of 97646621 is 12664679.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97646621 - 2¹⁸ = 97384477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97646641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5165 + ... + 14898.

It is an arithmetic number, because the mean of its divisors is an integer number (12680448).

Almost surely, 2^97646621 is an apocalyptic number.

It is an amenable number.

97646621 is a deficient number, since it is larger than the sum of its proper divisors (3796963).

97646621 is a wasteful number, since it uses less digits than its factorization.

97646621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20251.

The product of its digits is 108864, while the sum is 41.

The square root of 97646621 is about 9881.6304828707. The cubic root of 97646621 is about 460.4888014558.

The spelling of 97646621 in words is "ninety-seven million, six hundred forty-six thousand, six hundred twenty-one".