712945 has 4 divisors (see below), whose sum is σ = 855540. Its totient is φ = 570352.

The previous prime is 712939. The next prime is 712951. The reversal of 712945 is 549217.

It is a happy number.

712945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 549217 = 23 ⋅23879.

It is an interprime number because it is at equal distance from previous prime (712939) and next prime (712951).

It can be written as a sum of positive squares in 2 ways, for example, as 99856 + 613089 = 316^2 + 783^2 .

It is a cyclic number.

It is not a de Polignac number, because 712945 - 2⁵ = 712913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71290 + ... + 71299.

It is an arithmetic number, because the mean of its divisors is an integer number (213885).

2⁷¹²⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

712945 is a deficient number, since it is larger than the sum of its proper divisors (142595).

712945 is a wasteful number, since it uses less digits than its factorization.

712945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142594.

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

The square root of 712945 is about 844.3607049123. The cubic root of 712945 is about 89.3343899160.

The spelling of 712945 in words is "seven hundred twelve thousand, nine hundred forty-five".