39894874 has 4 divisors (see below), whose sum is σ = 59842314. Its totient is φ = 19947436.

The previous prime is 39894859. The next prime is 39894901. The reversal of 39894874 is 47849893.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28164249 + 11730625 = 5307^2 + 3425^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9973717 + ... + 9973720.

Almost surely, 2^39894874 is an apocalyptic number.

39894874 is a deficient number, since it is larger than the sum of its proper divisors (19947440).

39894874 is a wasteful number, since it uses less digits than its factorization.

39894874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19947439.

The product of its digits is 1741824, while the sum is 52.

The square root of 39894874 is about 6316.2389125175. The cubic root of 39894874 is about 341.6953215970.

The spelling of 39894874 in words is "thirty-nine million, eight hundred ninety-four thousand, eight hundred seventy-four".