97900651 has 4 divisors (see below), whose sum is σ = 97953232. Its totient is φ = 97848072.

The previous prime is 97900609. The next prime is 97900657. The reversal of 97900651 is 15600979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15600979 = 3911 ⋅3989.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97900651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97900651.

It is not an unprimeable number, because it can be changed into a prime (97900657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23391 + ... + 27256.

It is an arithmetic number, because the mean of its divisors is an integer number (24488308).

Almost surely, 2^97900651 is an apocalyptic number.

97900651 is a deficient number, since it is larger than the sum of its proper divisors (52581).

97900651 is a wasteful number, since it uses less digits than its factorization.

97900651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52580.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 97900651 is about 9894.4757819705. The cubic root of 97900651 is about 460.8877798505.

The spelling of 97900651 in words is "ninety-seven million, nine hundred thousand, six hundred fifty-one".