713278217 has 4 divisors (see below), whose sum is σ = 713410176. Its totient is φ = 713146260.

The previous prime is 713278207. The next prime is 713278249. The reversal of 713278217 is 712872317.

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.

It is a cyclic number.

It is not a de Polignac number, because 713278217 - 2²⁶ = 646169353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (713278207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57509 + ... + 68802.

It is an arithmetic number, because the mean of its divisors is an integer number (178352544).

Almost surely, 2^713278217 is an apocalyptic number.

It is an amenable number.

713278217 is a deficient number, since it is larger than the sum of its proper divisors (131959).

713278217 is a wasteful number, since it uses less digits than its factorization.

713278217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131958.

The product of its digits is 32928, while the sum is 38.

The square root of 713278217 is about 26707.2689917932. The cubic root of 713278217 is about 893.4830548261.

The spelling of 713278217 in words is "seven hundred thirteen million, two hundred seventy-eight thousand, two hundred seventeen".