712438 has 4 divisors (see below), whose sum is σ = 1068660. Its totient is φ = 356218.

The previous prime is 712433. The next prime is 712447. The reversal of 712438 is 834217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 834217 = 67 ⋅12451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712433) by changing a digit.

712438 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178108 + ... + 178111.

It is an arithmetic number, because the mean of its divisors is an integer number (267165).

2⁷¹²⁴³⁸ is an apocalyptic number.

712438 is a deficient number, since it is larger than the sum of its proper divisors (356222).

712438 is a wasteful number, since it uses less digits than its factorization.

712438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356221.

The product of its digits is 1344, while the sum is 25.

The square root of 712438 is about 844.0604243773. The cubic root of 712438 is about 89.3132086298.

The spelling of 712438 in words is "seven hundred twelve thousand, four hundred thirty-eight".