725897897 has 8 divisors (see below), whose sum is σ = 730572960. Its totient is φ = 721232640.

The previous prime is 725897873. The next prime is 725897903. The reversal of 725897897 is 798798527.

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 725897897 - 2²⁴ = 709120681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725897867) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 194822 + ... + 198512.

It is an arithmetic number, because the mean of its divisors is an integer number (91321620).

Almost surely, 2^725897897 is an apocalyptic number.

It is an amenable number.

725897897 is a deficient number, since it is larger than the sum of its proper divisors (4675063).

725897897 is a wasteful number, since it uses less digits than its factorization.

725897897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4903.

The product of its digits is 17781120, while the sum is 62.

The square root of 725897897 is about 26942.4924051209. The cubic root of 725897897 is about 898.7215993651.

The spelling of 725897897 in words is "seven hundred twenty-five million, eight hundred ninety-seven thousand, eight hundred ninety-seven".