725964690 has 32 divisors (see below), whose sum is σ = 1900708416. Its totient is φ = 175991360.

The previous prime is 725964671. The next prime is 725964739. The reversal of 725964690 is 96469527.

725964690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×725964690² = 1054049462253592200, which contains 22 as substring.

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, 1099617 + ... + 1100276.

It is an arithmetic number, because the mean of its divisors is an integer number (59397138).

Almost surely, 2^725964690 is an apocalyptic number.

725964690 is an abundant number, since it is smaller than the sum of its proper divisors (1174743726).

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

725964690 is a wasteful number, since it uses less digits than its factorization.

725964690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199914.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 725964690 is about 26943.7319241415. The cubic root of 725964690 is about 898.7491636047.

The spelling of 725964690 in words is "seven hundred twenty-five million, nine hundred sixty-four thousand, six hundred ninety".