715389 has 4 divisors (see below), whose sum is σ = 953856. Its totient is φ = 476924.

The previous prime is 715373. The next prime is 715397. The reversal of 715389 is 983517.

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: 983517 = 3 ⋅327839.

It is a cyclic number.

It is not a de Polignac number, because 715389 - 2⁴ = 715373 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715339) 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, 119229 + ... + 119234.

It is an arithmetic number, because the mean of its divisors is an integer number (238464).

2⁷¹⁵³⁸⁹ is an apocalyptic number.

It is an amenable number.

715389 is a deficient number, since it is larger than the sum of its proper divisors (238467).

715389 is a wasteful number, since it uses less digits than its factorization.

715389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238466.

The product of its digits is 7560, while the sum is 33.

The square root of 715389 is about 845.8067155089. The cubic root of 715389 is about 89.4363539470.

It can be divided in two parts, 71 and 5389, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 715389 in words is "seven hundred fifteen thousand, three hundred eighty-nine".