97396891 has 4 divisors (see below), whose sum is σ = 97426800. Its totient is φ = 97366984.

The previous prime is 97396879. The next prime is 97396919. The reversal of 97396891 is 19869379.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97396891 - 2¹⁵ = 97364123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97396391) 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, 9376 + ... + 16813.

It is an arithmetic number, because the mean of its divisors is an integer number (24356700).

Almost surely, 2^97396891 is an apocalyptic number.

97396891 is a deficient number, since it is larger than the sum of its proper divisors (29909).

97396891 is a wasteful number, since it uses less digits than its factorization.

97396891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29908.

The product of its digits is 734832, while the sum is 52.

The square root of 97396891 is about 9868.9863207930. The cubic root of 97396891 is about 460.0959015550.

The spelling of 97396891 in words is "ninety-seven million, three hundred ninety-six thousand, eight hundred ninety-one".