725494 has 24 divisors (see below), whose sum is σ = 1383048. Its totient is φ = 282240.

The previous prime is 725479. The next prime is 725507. The reversal of 725494 is 494527.

725494 = T₁₄₇ + T₁₄₈ + ... + T₁₉₅.

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

It is a nialpdrome in base 7.

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 11 ways as a sum of consecutive naturals, for example, 742 + ... + 1414.

It is an arithmetic number, because the mean of its divisors is an integer number (57627).

2⁷²⁵⁴⁹⁴ is an apocalyptic number.

725494 is the 539-th heptagonal number.

725494 is a deficient number, since it is larger than the sum of its proper divisors (657554).

725494 is a wasteful number, since it uses less digits than its factorization.

725494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 693 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 725494 is about 851.7593556868. The cubic root of 725494 is about 89.8554882483.

The spelling of 725494 in words is "seven hundred twenty-five thousand, four hundred ninety-four".