39147974 has 16 divisors (see below), whose sum is σ = 63624528. Its totient is φ = 17993472.

The previous prime is 39147967. The next prime is 39148007. The reversal of 39147974 is 47974193.

It is a happy number.

39147974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11927 + ... + 14850.

It is an arithmetic number, because the mean of its divisors is an integer number (3976533).

Almost surely, 2^39147974 is an apocalyptic number.

39147974 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

39147974 is a deficient number, since it is larger than the sum of its proper divisors (24476554).

39147974 is a wasteful number, since it uses less digits than its factorization.

39147974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26839.

The product of its digits is 190512, while the sum is 44.

The square root of 39147974 is about 6256.8341835149. The cubic root of 39147974 is about 339.5495013940.

The spelling of 39147974 in words is "thirty-nine million, one hundred forty-seven thousand, nine hundred seventy-four".