725827866 has 32 divisors (see below), whose sum is σ = 1471919040. Its totient is φ = 238586496.

The previous prime is 725827847. The next prime is 725827867. The reversal of 725827866 is 668728527.

It is a happy number.

It is a super-2 number, since 2×725827866² = 1053652182124227912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (725827867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144550 + ... + 149486.

It is an arithmetic number, because the mean of its divisors is an integer number (45997470).

Almost surely, 2^725827866 is an apocalyptic number.

725827866 is an abundant number, since it is smaller than the sum of its proper divisors (746091174).

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

725827866 is a wasteful number, since it uses less digits than its factorization.

725827866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5278.

The product of its digits is 2257920, while the sum is 51.

The square root of 725827866 is about 26941.1927352892. The cubic root of 725827866 is about 898.6926970467.

The spelling of 725827866 in words is "seven hundred twenty-five million, eight hundred twenty-seven thousand, eight hundred sixty-six".