861600752 has 20 divisors (see below), whose sum is σ = 1757212680. Its totient is φ = 408126528.

The previous prime is 861600739. The next prime is 861600793. The reversal of 861600752 is 257006168.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1416803 + ... + 1417410.

It is an arithmetic number, because the mean of its divisors is an integer number (87860634).

Almost surely, 2^861600752 is an apocalyptic number.

It is an amenable number.

861600752 is an abundant number, since it is smaller than the sum of its proper divisors (895611928).

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

861600752 is a wasteful number, since it uses less digits than its factorization.

861600752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834240 (or 2834234 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 861600752 is about 29353.0365039122. The cubic root of 861600752 is about 951.5582007190.

The spelling of 861600752 in words is "eight hundred sixty-one million, six hundred thousand, seven hundred fifty-two".