389496939 has 32 divisors (see below), whose sum is σ = 570501120. Its totient is φ = 234928512.

The previous prime is 389496931. The next prime is 389496997. The reversal of 389496939 is 939694983.

It is not a de Polignac number, because 389496939 - 2³ = 389496931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389496931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 514149 + ... + 514905.

It is an arithmetic number, because the mean of its divisors is an integer number (17828160).

Almost surely, 2^389496939 is an apocalyptic number.

389496939 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

389496939 is a deficient number, since it is larger than the sum of its proper divisors (181004181).

389496939 is a wasteful number, since it uses less digits than its factorization.

389496939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019.

The product of its digits is 11337408, while the sum is 60.

The square root of 389496939 is about 19735.6768062309. The cubic root of 389496939 is about 730.3000824199.

The spelling of 389496939 in words is "three hundred eighty-nine million, four hundred ninety-six thousand, nine hundred thirty-nine".