97663620 has 24 divisors (see below), whose sum is σ = 273458304. Its totient is φ = 26043616.

The previous prime is 97663613. The next prime is 97663627. The reversal of 97663620 is 2636679.

It is an interprime number because it is at equal distance from previous prime (97663613) and next prime (97663627).

It is not an unprimeable number, because it can be changed into a prime (97663627) 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, 813804 + ... + 813923.

It is an arithmetic number, because the mean of its divisors is an integer number (11394096).

Almost surely, 2^97663620 is an apocalyptic number.

It is an amenable number.

97663620 is an abundant number, since it is smaller than the sum of its proper divisors (175794684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97663620 is a wasteful number, since it uses less digits than its factorization.

97663620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627739 (or 1627737 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 97663620 is about 9882.4905767726. The cubic root of 97663620 is about 460.5155215985.

The spelling of 97663620 in words is "ninety-seven million, six hundred sixty-three thousand, six hundred twenty".