97651997 has 8 divisors (see below), whose sum is σ = 102435840. Its totient is φ = 92913040.

The previous prime is 97651993. The next prime is 97651999. The reversal of 97651997 is 79915679.

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 97651997 - 2² = 97651993 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 (97651993) 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 7 ways as a sum of consecutive naturals, for example, 6722 + ... + 15507.

It is an arithmetic number, because the mean of its divisors is an integer number (12804480).

Almost surely, 2^97651997 is an apocalyptic number.

It is an amenable number.

97651997 is a deficient number, since it is larger than the sum of its proper divisors (4783843).

97651997 is a wasteful number, since it uses less digits than its factorization.

97651997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22443.

The product of its digits is 1071630, while the sum is 53.

The square root of 97651997 is about 9881.9024990130. The cubic root of 97651997 is about 460.4972521403.

The spelling of 97651997 in words is "ninety-seven million, six hundred fifty-one thousand, nine hundred ninety-seven".