725694 has 16 divisors (see below), whose sum is σ = 1470720. Its totient is φ = 238680.

The previous prime is 725687. The next prime is 725723. The reversal of 725694 is 496527.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292 + ... + 1239.

It is an arithmetic number, because the mean of its divisors is an integer number (91920).

2⁷²⁵⁶⁹⁴ is an apocalyptic number.

725694 is an abundant number, since it is smaller than the sum of its proper divisors (745026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725694 is a wasteful number, since it uses less digits than its factorization.

725694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615.

The product of its digits is 15120, while the sum is 33.

The square root of 725694 is about 851.8767516490. The cubic root of 725694 is about 89.8637444372.

Adding to 725694 its reverse (496527), we get a palindrome (1222221).

The spelling of 725694 in words is "seven hundred twenty-five thousand, six hundred ninety-four".