2855997971 has 8 divisors (see below), whose sum is σ = 2880683520. Its totient is φ = 2831347008.

The previous prime is 2855997953. The next prime is 2855997973. The reversal of 2855997971 is 1797995582.

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 2855997971 - 2²⁶ = 2788889107 is a prime.

It is a super-2 number, since 2×2855997971² = 16313448820712233682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2855997973) 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, 173615 + ... + 189351.

It is an arithmetic number, because the mean of its divisors is an integer number (360085440).

Almost surely, 2^2855997971 is an apocalyptic number.

2855997971 is a deficient number, since it is larger than the sum of its proper divisors (24685549).

2855997971 is a wasteful number, since it uses less digits than its factorization.

2855997971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17293.

The product of its digits is 14288400, while the sum is 62.

The square root of 2855997971 is about 53441.5378801920. The cubic root of 2855997971 is about 1418.7938529634.

The spelling of 2855997971 in words is "two billion, eight hundred fifty-five million, nine hundred ninety-seven thousand, nine hundred seventy-one".