715490 has 8 divisors (see below), whose sum is σ = 1287900. Its totient is φ = 286192.

The previous prime is 715489. The next prime is 715499. The reversal of 715490 is 94517.

It can be written as a sum of positive squares in 2 ways, for example, as 654481 + 61009 = 809^2 + 247^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (715499) 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 3 ways as a sum of consecutive naturals, for example, 35765 + ... + 35784.

2⁷¹⁵⁴⁹⁰ is an apocalyptic number.

715490 is a deficient number, since it is larger than the sum of its proper divisors (572410).

715490 is a wasteful number, since it uses less digits than its factorization.

715490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71556.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 715490 is about 845.8664197141. The cubic root of 715490 is about 89.4405626813.

The spelling of 715490 in words is "seven hundred fifteen thousand, four hundred ninety".