707904 has 42 divisors (see below), whose sum is σ = 2030730. Its totient is φ = 235776.

The previous prime is 707887. The next prime is 707911. The reversal of 707904 is 409707.

It can be written as a sum of positive squares in only one way, i.e., 705600 + 2304 = 840^2 + 48^2 .

It is a super-2 number, since 2×707904² = 1002256146432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

707904 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39 + ... + 1190.

2⁷⁰⁷⁹⁰⁴ 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 707904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1015365).

707904 is an abundant number, since it is smaller than the sum of its proper divisors (1322826).

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

707904 is a wasteful number, since it uses less digits than its factorization.

707904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247 (or 1234 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 707904 is about 841.3703108620. The cubic root of 707904 is about 89.1233403314.

The spelling of 707904 in words is "seven hundred seven thousand, nine hundred four".