712397 has 4 divisors (see below), whose sum is σ = 814176. Its totient is φ = 610620.

The previous prime is 712357. The next prime is 712409. The reversal of 712397 is 793217.

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, and also an emirpimes, since its reverse is a distinct semiprime: 793217 = 271 ⋅2927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-712397 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712357) 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, 50879 + ... + 50892.

It is an arithmetic number, because the mean of its divisors is an integer number (203544).

2⁷¹²³⁹⁷ is an apocalyptic number.

It is an amenable number.

712397 is a deficient number, since it is larger than the sum of its proper divisors (101779).

712397 is a wasteful number, since it uses less digits than its factorization.

712397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101778.

The product of its digits is 2646, while the sum is 29.

The square root of 712397 is about 844.0361366671. The cubic root of 712397 is about 89.3114953056.

The spelling of 712397 in words is "seven hundred twelve thousand, three hundred ninety-seven".