715491 has 24 divisors (see below), whose sum is σ = 1214304. Its totient is φ = 397440.

The previous prime is 715489. The next prime is 715499. The reversal of 715491 is 194517.

It is not a de Polignac number, because 715491 - 2¹ = 715489 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 715491.

It is not an unprimeable number, because it can be changed into a prime (715499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2445 + ... + 2721.

It is an arithmetic number, because the mean of its divisors is an integer number (50596).

2⁷¹⁵⁴⁹¹ is an apocalyptic number.

715491 is a deficient number, since it is larger than the sum of its proper divisors (498813).

715491 is a wasteful number, since it uses less digits than its factorization.

715491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 328 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 715491 is about 845.8670108238. The cubic root of 715491 is about 89.4406043500.

The spelling of 715491 in words is "seven hundred fifteen thousand, four hundred ninety-one".