785239672 has 64 divisors (see below), whose sum is σ = 1746432000. Its totient is φ = 323896320.

The previous prime is 785239643. The next prime is 785239681. The reversal of 785239672 is 276932587.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344328 + ... + 346600.

It is an arithmetic number, because the mean of its divisors is an integer number (27288000).

Almost surely, 2^785239672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 785239672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873216000).

785239672 is an abundant number, since it is smaller than the sum of its proper divisors (961192328).

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

785239672 is a wasteful number, since it uses less digits than its factorization.

785239672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516 (or 2512 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 49.

The square root of 785239672 is about 28022.1282560765. The cubic root of 785239672 is about 922.5730083252.

It can be divided in two parts, 7852 and 39672, that added together give a square (47524 = 218²).

The spelling of 785239672 in words is "seven hundred eighty-five million, two hundred thirty-nine thousand, six hundred seventy-two".