725679642 has 8 divisors (see below), whose sum is σ = 1451359296. Its totient is φ = 241893212.

The previous prime is 725679587. The next prime is 725679649. The reversal of 725679642 is 246976527.

725679642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

725679642 is an admirable number.

It is a super-2 number, since 2×725679642² = 1053221885626496328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 725679591 and 725679600.

It is not an unprimeable number, because it can be changed into a prime (725679649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60473298 + ... + 60473309.

It is an arithmetic number, because the mean of its divisors is an integer number (181419912).

Almost surely, 2^725679642 is an apocalyptic number.

725679642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

725679642 is a wasteful number, since it uses less digits than its factorization.

725679642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120946612.

The product of its digits is 1270080, while the sum is 48.

The square root of 725679642 is about 26938.4417143977. The cubic root of 725679642 is about 898.6315177593.

The spelling of 725679642 in words is "seven hundred twenty-five million, six hundred seventy-nine thousand, six hundred forty-two".