715391 has 8 divisors (see below), whose sum is σ = 743424. Its totient is φ = 687960.

The previous prime is 715373. The next prime is 715397. The reversal of 715391 is 193517.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 715391 - 2¹⁴ = 699007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 715391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5396 + ... + 5526.

It is an arithmetic number, because the mean of its divisors is an integer number (92928).

2⁷¹⁵³⁹¹ is an apocalyptic number.

715391 is a deficient number, since it is larger than the sum of its proper divisors (28033).

715391 is a wasteful number, since it uses less digits than its factorization.

715391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301.

The product of its digits is 945, while the sum is 26.

The square root of 715391 is about 845.8078978113. The cubic root of 715391 is about 89.4364372921.

The spelling of 715391 in words is "seven hundred fifteen thousand, three hundred ninety-one".