778252 has 12 divisors (see below), whose sum is σ = 1388016. Its totient is φ = 381680.

The previous prime is 778247. The next prime is 778301. The reversal of 778252 is 252877.

It is an unprimeable number.

778252 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 3 ways as a sum of consecutive naturals, for example, 1624 + ... + 2047.

It is an arithmetic number, because the mean of its divisors is an integer number (115668).

2⁷⁷⁸²⁵² is an apocalyptic number.

It is an amenable number.

778252 is a deficient number, since it is larger than the sum of its proper divisors (609764).

778252 is a wasteful number, since it uses less digits than its factorization.

778252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728 (or 3726 counting only the distinct ones).

The product of its digits is 7840, while the sum is 31.

The square root of 778252 is about 882.1859214474. The cubic root of 778252 is about 91.9828260318.

The spelling of 778252 in words is "seven hundred seventy-eight thousand, two hundred fifty-two".