712549 has 4 divisors (see below), whose sum is σ = 716364. Its totient is φ = 708736.

The previous prime is 712531. The next prime is 712561. The reversal of 712549 is 945217.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 330625 + 381924 = 575^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 712549 - 2¹³ = 704357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715549) 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, 1612 + ... + 2005.

It is an arithmetic number, because the mean of its divisors is an integer number (179091).

2⁷¹²⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

712549 is a deficient number, since it is larger than the sum of its proper divisors (3815).

712549 is a wasteful number, since it uses less digits than its factorization.

712549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814.

The product of its digits is 2520, while the sum is 28.

The square root of 712549 is about 844.1261754027. The cubic root of 712549 is about 89.3178468118.

The spelling of 712549 in words is "seven hundred twelve thousand, five hundred forty-nine".