715742 has 8 divisors (see below), whose sum is σ = 1083456. Its totient is φ = 354592.

The previous prime is 715739. The next prime is 715753. The reversal of 715742 is 247517.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×715742² = 1024573221128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1358 + ... + 1809.

It is an arithmetic number, because the mean of its divisors is an integer number (135432).

2⁷¹⁵⁷⁴² is an apocalyptic number.

715742 is a deficient number, since it is larger than the sum of its proper divisors (367714).

715742 is a wasteful number, since it uses less digits than its factorization.

715742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282.

The product of its digits is 1960, while the sum is 26.

The square root of 715742 is about 846.0153662907. The cubic root of 715742 is about 89.4510619551.

Subtracting from 715742 its sum of digits (26), we obtain a square (715716 = 846²).

The spelling of 715742 in words is "seven hundred fifteen thousand, seven hundred forty-two".