725392617 has 8 divisors (see below), whose sum is σ = 967360224. Its totient is φ = 483510048.

The previous prime is 725392589. The next prime is 725392673. The reversal of 725392617 is 716293527.

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

It is not a de Polignac number, because 725392617 - 2⁶ = 725392553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725392687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2413 + ... + 38165.

It is an arithmetic number, because the mean of its divisors is an integer number (120920028).

Almost surely, 2^725392617 is an apocalyptic number.

It is an amenable number.

725392617 is a deficient number, since it is larger than the sum of its proper divisors (241967607).

725392617 is a wasteful number, since it uses less digits than its factorization.

725392617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42519.

The product of its digits is 158760, while the sum is 42.

The square root of 725392617 is about 26933.1137635439. The cubic root of 725392617 is about 898.5130248275.

The spelling of 725392617 in words is "seven hundred twenty-five million, three hundred ninety-two thousand, six hundred seventeen".