7215714085 has 16 divisors (see below), whose sum is σ = 8775907056. Its totient is φ = 5694916608.

The previous prime is 7215714049. The next prime is 7215714089. The reversal of 7215714085 is 5804175127.

It can be written as a sum of positive squares in 8 ways, for example, as 2766023649 + 4449690436 = 52593^2 + 66706^2 .

It is a cyclic number.

It is not a de Polignac number, because 7215714085 - 2¹⁹ = 7215189797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7215714089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130279 + ... + 177211.

It is an arithmetic number, because the mean of its divisors is an integer number (548494191).

Almost surely, 2^7215714085 is an apocalyptic number.

It is an amenable number.

7215714085 is a deficient number, since it is larger than the sum of its proper divisors (1560192971).

7215714085 is a wasteful number, since it uses less digits than its factorization.

7215714085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47352.

The product of its (nonzero) digits is 78400, while the sum is 40.

The square root of 7215714085 is about 84945.3594082690. The cubic root of 7215714085 is about 1932.3825431084.

The spelling of 7215714085 in words is "seven billion, two hundred fifteen million, seven hundred fourteen thousand, eighty-five".