618039889 has 4 divisors (see below), whose sum is σ = 620969200. Its totient is φ = 615110580.

The previous prime is 618039883. The next prime is 618039953. The reversal of 618039889 is 988930816.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 618039889 - 2⁵ = 618039857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618039883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464339 + ... + 1464760.

It is an arithmetic number, because the mean of its divisors is an integer number (155242300).

Almost surely, 2^618039889 is an apocalyptic number.

It is an amenable number.

618039889 is a deficient number, since it is larger than the sum of its proper divisors (2929311).

618039889 is a wasteful number, since it uses less digits than its factorization.

618039889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929310.

The product of its (nonzero) digits is 746496, while the sum is 52.

The square root of 618039889 is about 24860.4080618159. The cubic root of 618039889 is about 851.8023527257.

The spelling of 618039889 in words is "six hundred eighteen million, thirty-nine thousand, eight hundred eighty-nine".