2917872920 has 32 divisors (see below), whose sum is σ = 6850660320. Its totient is φ = 1116403200.

The previous prime is 2917872901. The next prime is 2917872929. The reversal of 2917872920 is 292787192.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2917872929) 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, 1584881 + ... + 1586720.

It is an arithmetic number, because the mean of its divisors is an integer number (214083135).

Almost surely, 2^2917872920 is an apocalyptic number.

2917872920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2917872920 is an abundant number, since it is smaller than the sum of its proper divisors (3932787400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2917872920 is a wasteful number, since it uses less digits than its factorization.

2917872920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171635 (or 3171631 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 2917872920 is about 54017.3390681177. The cubic root of 2917872920 is about 1428.9667532404.

The spelling of 2917872920 in words is "two billion, nine hundred seventeen million, eight hundred seventy-two thousand, nine hundred twenty".