715878 has 28 divisors (see below), whose sum is σ = 1613268. Its totient is φ = 238140.

The previous prime is 715877. The next prime is 715879. The reversal of 715878 is 878517.

715878 is a `hidden beast` number, since 71 + 587 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (715877) and next prime (715879).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1213 + ... + 1703.

2⁷¹⁵⁸⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 715878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (806634).

715878 is an abundant number, since it is smaller than the sum of its proper divisors (897390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

715878 is an equidigital number, since it uses as much as digits as its factorization.

715878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 496 counting only the distinct ones).

The product of its digits is 15680, while the sum is 36.

The square root of 715878 is about 846.0957392636. The cubic root of 715878 is about 89.4567272060.

The spelling of 715878 in words is "seven hundred fifteen thousand, eight hundred seventy-eight".