785872 has 10 divisors (see below), whose sum is σ = 1522658. Its totient is φ = 392928.

The previous prime is 785861. The next prime is 785879. The reversal of 785872 is 278587.

It can be written as a sum of positive squares in only one way, i.e., 767376 + 18496 = 876^2 + 136^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785879) 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 as a sum of consecutive naturals, namely, 24543 + ... + 24574.

2⁷⁸⁵⁸⁷² is an apocalyptic number.

It is an amenable number.

785872 is a deficient number, since it is larger than the sum of its proper divisors (736786).

785872 is a wasteful number, since it uses less digits than its factorization.

785872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49125 (or 49119 counting only the distinct ones).

The product of its digits is 31360, while the sum is 37.

The square root of 785872 is about 886.4942188193. The cubic root of 785872 is about 92.2820581241.

The spelling of 785872 in words is "seven hundred eighty-five thousand, eight hundred seventy-two".