39319966 has 16 divisors (see below), whose sum is σ = 69580800. Its totient is φ = 16307640.

The previous prime is 39319939. The next prime is 39319967. The reversal of 39319966 is 66991393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39319967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44866 + ... + 45733.

It is an arithmetic number, because the mean of its divisors is an integer number (4348800).

Almost surely, 2^39319966 is an apocalyptic number.

39319966 is a deficient number, since it is larger than the sum of its proper divisors (30260834).

39319966 is a wasteful number, since it uses less digits than its factorization.

39319966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90639.

The product of its digits is 236196, while the sum is 46.

The square root of 39319966 is about 6270.5634515568. The cubic root of 39319966 is about 340.0460318299.

The spelling of 39319966 in words is "thirty-nine million, three hundred nineteen thousand, nine hundred sixty-six".