612839889 has 24 divisors (see below), whose sum is σ = 941435040. Its totient is φ = 383056128.

The previous prime is 612839873. The next prime is 612839911. The reversal of 612839889 is 988938216.

It is a happy number.

It is not a de Polignac number, because 612839889 - 2⁴ = 612839873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (612839839) 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 23 ways as a sum of consecutive naturals, for example, 1887 + ... + 35060.

It is an arithmetic number, because the mean of its divisors is an integer number (39226460).

Almost surely, 2^612839889 is an apocalyptic number.

It is an amenable number.

612839889 is a deficient number, since it is larger than the sum of its proper divisors (328595151).

612839889 is a wasteful number, since it uses less digits than its factorization.

612839889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37069 (or 37066 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 612839889 is about 24755.6031839259. The cubic root of 612839889 is about 849.4066858378.

It can be divided in two parts, 6128398 and 89, that added together give a cube (6128487 = 183³).

The spelling of 612839889 in words is "six hundred twelve million, eight hundred thirty-nine thousand, eight hundred eighty-nine".