712724 has 24 divisors (see below), whose sum is σ = 1333248. Its totient is φ = 332640.

The previous prime is 712717. The next prime is 712739. The reversal of 712724 is 427217.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 712724.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5549 + ... + 5675.

It is an arithmetic number, because the mean of its divisors is an integer number (55552).

2⁷¹²⁷²⁴ is an apocalyptic number.

It is an amenable number.

712724 is a deficient number, since it is larger than the sum of its proper divisors (620524).

712724 is a wasteful number, since it uses less digits than its factorization.

712724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 213 counting only the distinct ones).

The product of its digits is 784, while the sum is 23.

The square root of 712724 is about 844.2298265283. The cubic root of 712724 is about 89.3251582826.

The spelling of 712724 in words is "seven hundred twelve thousand, seven hundred twenty-four", and thus it is an iban number.