939946689 has 24 divisors (see below), whose sum is σ = 1517259744. Its totient is φ = 555768000.

The previous prime is 939946669. The next prime is 939946699. The reversal of 939946689 is 986649939.

939946689 is a `hidden beast` number, since 9 + 3 + 99 + 466 + 89 = 666.

It is not a de Polignac number, because 939946689 - 2⁸ = 939946433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (939946619) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111727 + ... + 119844.

It is an arithmetic number, because the mean of its divisors is an integer number (63219156).

Almost surely, 2^939946689 is an apocalyptic number.

939946689 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

939946689 is a deficient number, since it is larger than the sum of its proper divisors (577313055).

939946689 is a wasteful number, since it uses less digits than its factorization.

939946689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231629 (or 231626 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 63.

The square root of 939946689 is about 30658.5500146370. The cubic root of 939946689 is about 979.5675896722.

The spelling of 939946689 in words is "nine hundred thirty-nine million, nine hundred forty-six thousand, six hundred eighty-nine".