39047966 has 4 divisors (see below), whose sum is σ = 58571952. Its totient is φ = 19523982.

The previous prime is 39047959. The next prime is 39047971. The reversal of 39047966 is 66974093.

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

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, 9761990 + ... + 9761993.

It is an arithmetic number, because the mean of its divisors is an integer number (14642988).

Almost surely, 2^39047966 is an apocalyptic number.

39047966 is a deficient number, since it is larger than the sum of its proper divisors (19523986).

39047966 is a wasteful number, since it uses less digits than its factorization.

39047966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19523985.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 39047966 is about 6248.8371718265. The cubic root of 39047966 is about 339.2601154188.

The spelling of 39047966 in words is "thirty-nine million, forty-seven thousand, nine hundred sixty-six".