725711979 has 8 divisors (see below), whose sum is σ = 1000982160. Its totient is φ = 467124896.

The previous prime is 725711971. The next prime is 725712017. The reversal of 725711979 is 979117527.

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

It is a cyclic number.

It is not a de Polignac number, because 725711979 - 2³ = 725711971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725711971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4170672 + ... + 4170845.

It is an arithmetic number, because the mean of its divisors is an integer number (125122770).

Almost surely, 2^725711979 is an apocalyptic number.

725711979 is a deficient number, since it is larger than the sum of its proper divisors (275270181).

725711979 is a wasteful number, since it uses less digits than its factorization.

725711979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8341549.

The product of its digits is 277830, while the sum is 48.

The square root of 725711979 is about 26939.0419094666. The cubic root of 725711979 is about 898.6448655297.

The spelling of 725711979 in words is "seven hundred twenty-five million, seven hundred eleven thousand, nine hundred seventy-nine".