725382817 has 16 divisors (see below), whose sum is σ = 786338560. Its totient is φ = 666807552.

The previous prime is 725382811. The next prime is 725382923. The reversal of 725382817 is 718283527.

It is a cyclic number.

It is not a de Polignac number, because 725382817 - 2¹⁵ = 725350049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725382811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303208 + ... + 305590.

It is an arithmetic number, because the mean of its divisors is an integer number (49146160).

Almost surely, 2^725382817 is an apocalyptic number.

It is an amenable number.

725382817 is a deficient number, since it is larger than the sum of its proper divisors (60955743).

725382817 is a wasteful number, since it uses less digits than its factorization.

725382817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872.

The product of its digits is 188160, while the sum is 43.

The square root of 725382817 is about 26932.9318307532. The cubic root of 725382817 is about 898.5089785281.

The spelling of 725382817 in words is "seven hundred twenty-five million, three hundred eighty-two thousand, eight hundred seventeen".