715885 has 4 divisors (see below), whose sum is σ = 859068. Its totient is φ = 572704.

The previous prime is 715879. The next prime is 715889. The reversal of 715885 is 588517.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 268324 + 447561 = 518^2 + 669^2 .

It is a cyclic number.

It is not a de Polignac number, because 715885 - 2³ = 715877 is a prime.

It is a Duffinian number.

715885 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 715885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715889) 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, 71584 + ... + 71593.

It is an arithmetic number, because the mean of its divisors is an integer number (214767).

2⁷¹⁵⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

715885 is a deficient number, since it is larger than the sum of its proper divisors (143183).

715885 is a wasteful number, since it uses less digits than its factorization.

715885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143182.

The product of its digits is 11200, while the sum is 34.

The square root of 715885 is about 846.0998759012. The cubic root of 715885 is about 89.4570187804.

It can be divided in two parts, 715 and 885, that added together give a square (1600 = 40²).

The spelling of 715885 in words is "seven hundred fifteen thousand, eight hundred eighty-five".