97960891 has 8 divisors (see below), whose sum is σ = 112773600. Its totient is φ = 83352768.

The previous prime is 97960873. The next prime is 97960897. The reversal of 97960891 is 19806979.

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 97960891 - 2¹⁵ = 97928123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97960897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50116 + ... + 52033.

It is an arithmetic number, because the mean of its divisors is an integer number (14096700).

Almost surely, 2^97960891 is an apocalyptic number.

97960891 is a deficient number, since it is larger than the sum of its proper divisors (14812709).

97960891 is a wasteful number, since it uses less digits than its factorization.

97960891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102293.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 97960891 is about 9897.5194367074. The cubic root of 97960891 is about 460.9822912658.

The spelling of 97960891 in words is "ninety-seven million, nine hundred sixty thousand, eight hundred ninety-one".