39888117 has 12 divisors (see below), whose sum is σ = 57963360. Its totient is φ = 26431848.

The previous prime is 39888097. The next prime is 39888139. The reversal of 39888117 is 71188893.

It is not a de Polignac number, because 39888117 - 2⁶ = 39888053 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39888617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11767 + ... + 14772.

It is an arithmetic number, because the mean of its divisors is an integer number (4830280).

Almost surely, 2^39888117 is an apocalyptic number.

It is an amenable number.

39888117 is a deficient number, since it is larger than the sum of its proper divisors (18075243).

39888117 is a wasteful number, since it uses less digits than its factorization.

39888117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26712 (or 26709 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 39888117 is about 6315.7039987637. The cubic root of 39888117 is about 341.6760295141.

The spelling of 39888117 in words is "thirty-nine million, eight hundred eighty-eight thousand, one hundred seventeen".