725747626 has 8 divisors (see below), whose sum is σ = 1090198944. Its totient is φ = 362347980.

The previous prime is 725747611. The next prime is 725747647. The reversal of 725747626 is 626747527.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261190 + ... + 263953.

It is an arithmetic number, because the mean of its divisors is an integer number (136274868).

Almost surely, 2^725747626 is an apocalyptic number.

725747626 is a deficient number, since it is larger than the sum of its proper divisors (364451318).

725747626 is a wasteful number, since it uses less digits than its factorization.

725747626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525836.

The product of its digits is 987840, while the sum is 46.

The square root of 725747626 is about 26939.7035247235. The cubic root of 725747626 is about 898.6595791121.

Subtracting from 725747626 its reverse (626747527), we obtain a palindrome (99000099).

It can be divided in two parts, 72574 and 7626, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 725747626 in words is "seven hundred twenty-five million, seven hundred forty-seven thousand, six hundred twenty-six".