712523 has 4 divisors (see below), whose sum is σ = 814320. Its totient is φ = 610728.

The previous prime is 712511. The next prime is 712531. The reversal of 712523 is 325217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 712523 - 2⁴ = 712507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 712495 and 712504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712573) 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, 50888 + ... + 50901.

It is an arithmetic number, because the mean of its divisors is an integer number (203580).

2⁷¹²⁵²³ is an apocalyptic number.

712523 is a deficient number, since it is larger than the sum of its proper divisors (101797).

712523 is a wasteful number, since it uses less digits than its factorization.

712523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101796.

The product of its digits is 420, while the sum is 20.

The square root of 712523 is about 844.1107747209. The cubic root of 712523 is about 89.3167604340.

The spelling of 712523 in words is "seven hundred twelve thousand, five hundred twenty-three".