39122889 has 16 divisors (see below), whose sum is σ = 56290752. Its totient is φ = 24026688.

The previous prime is 39122879. The next prime is 39122891. The reversal of 39122889 is 98822193.

It is not a de Polignac number, because 39122889 - 2⁵ = 39122857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39122889.

It is not an unprimeable number, because it can be changed into a prime (39122879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31647 + ... + 32859.

It is an arithmetic number, because the mean of its divisors is an integer number (3518172).

Almost surely, 2^39122889 is an apocalyptic number.

39122889 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

39122889 is a deficient number, since it is larger than the sum of its proper divisors (17167863).

39122889 is a wasteful number, since it uses less digits than its factorization.

39122889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056.

The product of its digits is 62208, while the sum is 42.

The square root of 39122889 is about 6254.8292542643. The cubic root of 39122889 is about 339.4769610784.

The spelling of 39122889 in words is "thirty-nine million, one hundred twenty-two thousand, eight hundred eighty-nine".