97651996 has 48 divisors (see below), whose sum is σ = 190356768. Its totient is φ = 43545600.

The previous prime is 97651993. The next prime is 97651999. The reversal of 97651996 is 69915679.

It is an interprime number because it is at equal distance from previous prime (97651993) and next prime (97651999).

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97651993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347376 + ... + 347656.

It is an arithmetic number, because the mean of its divisors is an integer number (3965766).

Almost surely, 2^97651996 is an apocalyptic number.

It is an amenable number.

97651996 is a deficient number, since it is larger than the sum of its proper divisors (92704772).

97651996 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (97651995) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (500).

97651996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 500 counting only the distinct ones).

The product of its digits is 918540, while the sum is 52.

The square root of 97651996 is about 9881.9024484155. The cubic root of 97651996 is about 460.4972505684.

The spelling of 97651996 in words is "ninety-seven million, six hundred fifty-one thousand, nine hundred ninety-six".