39889874 has 4 divisors (see below), whose sum is σ = 59834814. Its totient is φ = 19944936.

The previous prime is 39889847. The next prime is 39889891. The reversal of 39889874 is 47898893.

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., 36060025 + 3829849 = 6005^2 + 1957^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9972467 + ... + 9972470.

Almost surely, 2^39889874 is an apocalyptic number.

39889874 is a deficient number, since it is larger than the sum of its proper divisors (19944940).

39889874 is a wasteful number, since it uses less digits than its factorization.

39889874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19944939.

The product of its digits is 3483648, while the sum is 56.

The square root of 39889874 is about 6315.8430949478. The cubic root of 39889874 is about 341.6810461791.

The spelling of 39889874 in words is "thirty-nine million, eight hundred eighty-nine thousand, eight hundred seventy-four".