715312 has 40 divisors (see below), whose sum is σ = 1579760. Its totient is φ = 311040.

The previous prime is 715303. The next prime is 715313. The reversal of 715312 is 213517.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 715312.

It is not an unprimeable number, because it can be changed into a prime (715313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3862 + ... + 4042.

It is an arithmetic number, because the mean of its divisors is an integer number (39494).

2⁷¹⁵³¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 715312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789880).

715312 is an abundant number, since it is smaller than the sum of its proper divisors (864448).

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

715312 is a wasteful number, since it uses less digits than its factorization.

715312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 215 counting only the distinct ones).

The product of its digits is 210, while the sum is 19.

The square root of 715312 is about 845.7611956102. The cubic root of 715312 is about 89.4331450419.

Adding to 715312 its reverse (213517), we get a palindrome (928829).

The spelling of 715312 in words is "seven hundred fifteen thousand, three hundred twelve".