39656973 has 8 divisors (see below), whose sum is σ = 53545600. Its totient is φ = 26103168.

The previous prime is 39656951. The next prime is 39656977. The reversal of 39656973 is 37965693.

It is a happy number.

39656973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 39656973 - 2⁵ = 39656941 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39656977) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 83428 + ... + 83901.

It is an arithmetic number, because the mean of its divisors is an integer number (6693200).

Almost surely, 2^39656973 is an apocalyptic number.

It is an amenable number.

39656973 is a deficient number, since it is larger than the sum of its proper divisors (13888627).

39656973 is a wasteful number, since it uses less digits than its factorization.

39656973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167411.

The product of its digits is 918540, while the sum is 48.

The square root of 39656973 is about 6297.3782640080. The cubic root of 39656973 is about 341.0147681819.

The spelling of 39656973 in words is "thirty-nine million, six hundred fifty-six thousand, nine hundred seventy-three".