92720571997 has 8 divisors (see below), whose sum is σ = 94265216640. Its totient is φ = 91176722160.

The previous prime is 92720571961. The next prime is 92720572001. The reversal of 92720571997 is 79917502729.

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 92720571997 - 2⁷ = 92720571869 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 (92720571917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38904 + ... + 432382.

It is an arithmetic number, because the mean of its divisors is an integer number (11783152080).

Almost surely, 2^92720571997 is an apocalyptic number.

It is an amenable number.

92720571997 is a deficient number, since it is larger than the sum of its proper divisors (1544644643).

92720571997 is a wasteful number, since it uses less digits than its factorization.

92720571997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397403.

The product of its (nonzero) digits is 5000940, while the sum is 58.

The spelling of 92720571997 in words is "ninety-two billion, seven hundred twenty million, five hundred seventy-one thousand, nine hundred ninety-seven".