63974 has 8 divisors (see below), whose sum is σ = 99360. Its totient is φ = 30856.

The previous prime is 63949. The next prime is 63977. The reversal of 63974 is 47936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (29).

Its product of digits (4536) is a multiple of the sum of its prime divisors (1134).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494 + ... + 609.

It is an arithmetic number, because the mean of its divisors is an integer number (12420).

2⁶³⁹⁷⁴ is an apocalyptic number.

63974 is a deficient number, since it is larger than the sum of its proper divisors (35386).

63974 is a wasteful number, since it uses less digits than its factorization.

63974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134.

The product of its digits is 4536, while the sum is 29.

The square root of 63974 is about 252.9308205814. The cubic root of 63974 is about 39.9945825997.

The spelling of 63974 in words is "sixty-three thousand, nine hundred seventy-four".