872742872 has 16 divisors (see below), whose sum is σ = 1732651560. Its totient is φ = 410702464.

The previous prime is 872742869. The next prime is 872742877. The reversal of 872742872 is 278247278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872742877) 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, 3208478 + ... + 3208749.

Almost surely, 2^872742872 is an apocalyptic number.

It is an amenable number.

872742872 is a deficient number, since it is larger than the sum of its proper divisors (859908688).

872742872 is a wasteful number, since it uses less digits than its factorization.

872742872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6417250 (or 6417246 counting only the distinct ones).

The product of its digits is 702464, while the sum is 47.

The square root of 872742872 is about 29542.2218527991. The cubic root of 872742872 is about 955.6424583384.

The spelling of 872742872 in words is "eight hundred seventy-two million, seven hundred forty-two thousand, eight hundred seventy-two".