7192090889 has 4 divisors (see below), whose sum is σ = 7290612756. Its totient is φ = 7093569024.

The previous prime is 7192090883. The next prime is 7192090897. The reversal of 7192090889 is 9880902917.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1519440400 + 5672650489 = 38980^2 + 75317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7192090889 is a prime.

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 7192090889.

It is not an unprimeable number, because it can be changed into a prime (7192090883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49260824 + ... + 49260969.

It is an arithmetic number, because the mean of its divisors is an integer number (1822653189).

Almost surely, 2^7192090889 is an apocalyptic number.

It is an amenable number.

7192090889 is a deficient number, since it is larger than the sum of its proper divisors (98521867).

7192090889 is an equidigital number, since it uses as much as digits as its factorization.

7192090889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98521866.

The product of its (nonzero) digits is 653184, while the sum is 53.

The square root of 7192090889 is about 84806.1960531187. The cubic root of 7192090889 is about 1930.2714580542.

The spelling of 7192090889 in words is "seven billion, one hundred ninety-two million, ninety thousand, eight hundred eighty-nine".