725672 has 8 divisors (see below), whose sum is σ = 1360650. Its totient is φ = 362832.

The previous prime is 725671. The next prime is 725687. The reversal of 725672 is 276527.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 481636 + 244036 = 694^2 + 494^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725672.

It is not an unprimeable number, because it can be changed into a prime (725671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45347 + ... + 45362.

2⁷²⁵⁶⁷² is an apocalyptic number.

It is an amenable number.

725672 is a deficient number, since it is larger than the sum of its proper divisors (634978).

725672 is a wasteful number, since it uses less digits than its factorization.

725672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90715 (or 90711 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 725672 is about 851.8638388851. The cubic root of 725672 is about 89.8628363307.

The spelling of 725672 in words is "seven hundred twenty-five thousand, six hundred seventy-two".