39974 has 16 divisors (see below), whose sum is σ = 69120. Its totient is φ = 17160.

The previous prime is 39971. The next prime is 39979. The reversal of 39974 is 47993.

39974 = 1⁴ + 2⁴ + ... + 11⁴.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 39974.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 39974.

It is not an unprimeable number, because it can be changed into a prime (39971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467 + ... + 545.

It is an arithmetic number, because the mean of its divisors is an integer number (4320).

2³⁹⁹⁷⁴ is an apocalyptic number.

39974 is a deficient number, since it is larger than the sum of its proper divisors (29146).

39974 is a wasteful number, since it uses less digits than its factorization.

39974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115.

The product of its digits is 6804, while the sum is 32.

The square root of 39974 is about 199.9349894341. The cubic root of 39974 is about 34.1921074317.

The spelling of 39974 in words is "thirty-nine thousand, nine hundred seventy-four".