39117974 has 12 divisors (see below), whose sum is σ = 68257044. Its totient is φ = 16764804.

The previous prime is 39117971. The next prime is 39117989. The reversal of 39117974 is 47971193.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39117971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 199484 + ... + 199679.

It is an arithmetic number, because the mean of its divisors is an integer number (5688087).

Almost surely, 2^39117974 is an apocalyptic number.

39117974 is a deficient number, since it is larger than the sum of its proper divisors (29139070).

39117974 is a wasteful number, since it uses less digits than its factorization.

39117974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399179 (or 399172 counting only the distinct ones).

The product of its digits is 47628, while the sum is 41.

The square root of 39117974 is about 6254.4363455071. The cubic root of 39117974 is about 339.4627443442.

The spelling of 39117974 in words is "thirty-nine million, one hundred seventeen thousand, nine hundred seventy-four".