712613 has 4 divisors (see below), whose sum is σ = 777408. Its totient is φ = 647820.

The previous prime is 712603. The next prime is 712631. The reversal of 712613 is 316217.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 712613 - 2⁸ = 712357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712603) 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 3 ways as a sum of consecutive naturals, for example, 32381 + ... + 32402.

It is an arithmetic number, because the mean of its divisors is an integer number (194352).

2⁷¹²⁶¹³ is an apocalyptic number.

It is an amenable number.

712613 is a deficient number, since it is larger than the sum of its proper divisors (64795).

712613 is a wasteful number, since it uses less digits than its factorization.

712613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64794.

The product of its digits is 252, while the sum is 20.

The square root of 712613 is about 844.1640835762. The cubic root of 712613 is about 89.3205208599.

The spelling of 712613 in words is "seven hundred twelve thousand, six hundred thirteen".