7215000715 has 16 divisors (see below), whose sum is σ = 9370872000. Its totient is φ = 5301217152.

The previous prime is 7215000713. The next prime is 7215000721. The reversal of 7215000715 is 5170005127.

It is a cyclic number.

It is not a de Polignac number, because 7215000715 - 2¹ = 7215000713 is a prime.

It is a super-2 number, since 2×7215000715² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7215000713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265960 + ... + 291829.

It is an arithmetic number, because the mean of its divisors is an integer number (585679500).

Almost surely, 2^7215000715 is an apocalyptic number.

7215000715 is a deficient number, since it is larger than the sum of its proper divisors (2155871285).

7215000715 is a wasteful number, since it uses less digits than its factorization.

7215000715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558006.

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 7215000715 is about 84941.1603111236. The cubic root of 7215000715 is about 1932.3188603761.

The spelling of 7215000715 in words is "seven billion, two hundred fifteen million, seven hundred fifteen", and thus it is an aban number.