39797656 has 8 divisors (see below), whose sum is σ = 74620620. Its totient is φ = 19898824.

The previous prime is 39797633. The next prime is 39797671. The reversal of 39797656 is 65679793.

39797656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2487346 + ... + 2487361.

Almost surely, 2^39797656 is an apocalyptic number.

It is an amenable number.

39797656 is a deficient number, since it is larger than the sum of its proper divisors (34822964).

39797656 is a wasteful number, since it uses less digits than its factorization.

39797656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4974713 (or 4974709 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 52.

The square root of 39797656 is about 6308.5383410105. The cubic root of 39797656 is about 341.4175419203.

The spelling of 39797656 in words is "thirty-nine million, seven hundred ninety-seven thousand, six hundred fifty-six".