91892897 has 8 divisors (see below), whose sum is σ = 95354880. Its totient is φ = 88462080.

The previous prime is 91892863. The next prime is 91892917. The reversal of 91892897 is 79829819.

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 91892897 - 2⁶ = 91892833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91891897) 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, 1697 + ... + 13662.

It is an arithmetic number, because the mean of its divisors is an integer number (11919360).

Almost surely, 2^91892897 is an apocalyptic number.

It is an amenable number.

91892897 is a deficient number, since it is larger than the sum of its proper divisors (3461983).

91892897 is a wasteful number, since it uses less digits than its factorization.

91892897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15583.

The product of its digits is 653184, while the sum is 53.

The square root of 91892897 is about 9586.0782909384. The cubic root of 91892897 is about 451.2604939204.

The spelling of 91892897 in words is "ninety-one million, eight hundred ninety-two thousand, eight hundred ninety-seven".