712538 has 16 divisors (see below), whose sum is σ = 1192320. Its totient is φ = 317376.

The previous prime is 712531. The next prime is 712561. The reversal of 712538 is 835217.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712531) 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, 95 + ... + 1197.

It is an arithmetic number, because the mean of its divisors is an integer number (74520).

2⁷¹²⁵³⁸ is an apocalyptic number.

712538 is a deficient number, since it is larger than the sum of its proper divisors (479782).

712538 is a wasteful number, since it uses less digits than its factorization.

712538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141.

The product of its digits is 1680, while the sum is 26.

The square root of 712538 is about 844.1196597639. The cubic root of 712538 is about 89.3173871936.

The spelling of 712538 in words is "seven hundred twelve thousand, five hundred thirty-eight".