7215996889 has 8 divisors (see below), whose sum is σ = 7324380288. Its totient is φ = 7107801120.

The previous prime is 7215996877. The next prime is 7215996899. The reversal of 7215996889 is 9886995127.

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

It is a cyclic number.

It is not a de Polignac number, because 7215996889 - 2¹⁷ = 7215865817 is a prime.

It is a super-2 number, since 2×7215996889² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7215996889.

It is not an unprimeable number, because it can be changed into a prime (7215996899) 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, 31564 + ... + 124210.

It is an arithmetic number, because the mean of its divisors is an integer number (915547536).

Almost surely, 2^7215996889 is an apocalyptic number.

It is an amenable number.

7215996889 is a deficient number, since it is larger than the sum of its proper divisors (108383399).

7215996889 is a wasteful number, since it uses less digits than its factorization.

7215996889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93815.

The product of its digits is 19595520, while the sum is 64.

The square root of 7215996889 is about 84947.0240149706. The cubic root of 7215996889 is about 1932.4077879359.

The spelling of 7215996889 in words is "seven billion, two hundred fifteen million, nine hundred ninety-six thousand, eight hundred eighty-nine".