39887474 has 32 divisors (see below), whose sum is σ = 72130176. Its totient is φ = 16318720.

The previous prime is 39887461. The next prime is 39887489. The reversal of 39887474 is 47478893.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6284 + ... + 10920.

It is an arithmetic number, because the mean of its divisors is an integer number (2254068).

Almost surely, 2^39887474 is an apocalyptic number.

39887474 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

39887474 is a deficient number, since it is larger than the sum of its proper divisors (32242702).

39887474 is a wasteful number, since it uses less digits than its factorization.

39887474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4690.

The product of its digits is 1354752, while the sum is 50.

The square root of 39887474 is about 6315.6530937030. The cubic root of 39887474 is about 341.6741935549.

The spelling of 39887474 in words is "thirty-nine million, eight hundred eighty-seven thousand, four hundred seventy-four".