39964670 has 8 divisors (see below), whose sum is σ = 71936424. Its totient is φ = 15985864.

The previous prime is 39964643. The next prime is 39964747. The reversal of 39964670 is 7646993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1998224 + ... + 1998243.

It is an arithmetic number, because the mean of its divisors is an integer number (8992053).

Almost surely, 2^39964670 is an apocalyptic number.

39964670 is a deficient number, since it is larger than the sum of its proper divisors (31971754).

39964670 is a wasteful number, since it uses less digits than its factorization.

39964670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996474.

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

The square root of 39964670 is about 6321.7616215735. The cubic root of 39964670 is about 341.8944705926.

The spelling of 39964670 in words is "thirty-nine million, nine hundred sixty-four thousand, six hundred seventy".