39605974 has 4 divisors (see below), whose sum is σ = 59408964. Its totient is φ = 19802986.

The previous prime is 39605963. The next prime is 39605981. The reversal of 39605974 is 47950693.

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

It is a self number, because there is not a number n which added to its sum of digits gives 39605974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9901492 + ... + 9901495.

It is an arithmetic number, because the mean of its divisors is an integer number (14852241).

Almost surely, 2^39605974 is an apocalyptic number.

39605974 is a deficient number, since it is larger than the sum of its proper divisors (19802990).

39605974 is a wasteful number, since it uses less digits than its factorization.

39605974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19802989.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 39605974 is about 6293.3277365794. The cubic root of 39605974 is about 340.8685234292.

The spelling of 39605974 in words is "thirty-nine million, six hundred five thousand, nine hundred seventy-four".