715678 has 4 divisors (see below), whose sum is σ = 1073520. Its totient is φ = 357838.

The previous prime is 715657. The next prime is 715679. The reversal of 715678 is 876517.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 876517 = 241 ⋅3637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715679) by changing a digit.

715678 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 178918 + ... + 178921.

It is an arithmetic number, because the mean of its divisors is an integer number (268380).

2⁷¹⁵⁶⁷⁸ is an apocalyptic number.

715678 is a deficient number, since it is larger than the sum of its proper divisors (357842).

715678 is a wasteful number, since it uses less digits than its factorization.

715678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357841.

The product of its digits is 11760, while the sum is 34.

The square root of 715678 is about 845.9775410730. The cubic root of 715678 is about 89.4483957064.

It can be divided in two parts, 7 and 15678, that multiplied together give a triangular number (109746 = T₄₆₈).

The spelling of 715678 in words is "seven hundred fifteen thousand, six hundred seventy-eight".