3120297889 has 4 divisors (see below), whose sum is σ = 3143073924. Its totient is φ = 3097521856.

The previous prime is 3120297877. The next prime is 3120297893. The reversal of 3120297889 is 9887920213.

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 2705768289 + 414529600 = 52017^2 + 20360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3120297889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120297689) 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, 11387812 + ... + 11388085.

It is an arithmetic number, because the mean of its divisors is an integer number (785768481).

Almost surely, 2^3120297889 is an apocalyptic number.

It is an amenable number.

3120297889 is a deficient number, since it is larger than the sum of its proper divisors (22776035).

3120297889 is a wasteful number, since it uses less digits than its factorization.

3120297889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22776034.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 3120297889 is about 55859.6266457269. The cubic root of 3120297889 is about 1461.2752180292.

The spelling of 3120297889 in words is "three billion, one hundred twenty million, two hundred ninety-seven thousand, eight hundred eighty-nine".