860729872 has 20 divisors (see below), whose sum is σ = 1670675436. Its totient is φ = 429587840.

The previous prime is 860729827. The next prime is 860729879. The reversal of 860729872 is 278927068.

It can be written as a sum of positive squares in 2 ways, for example, as 33362176 + 827367696 = 5776^2 + 28764^2 .

It is not an unprimeable number, because it can be changed into a prime (860729879) 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 3 ways as a sum of consecutive naturals, for example, 39379 + ... + 57202.

Almost surely, 2^860729872 is an apocalyptic number.

It is an amenable number.

860729872 is a deficient number, since it is larger than the sum of its proper divisors (809945564).

860729872 is a wasteful number, since it uses less digits than its factorization.

860729872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97146 (or 97140 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 860729872 is about 29338.1981723486. The cubic root of 860729872 is about 951.2374905499.

The spelling of 860729872 in words is "eight hundred sixty million, seven hundred twenty-nine thousand, eight hundred seventy-two".