39934747 has 8 divisors (see below), whose sum is σ = 40640336. Its totient is φ = 39232512.

The previous prime is 39934733. The next prime is 39934757. The reversal of 39934747 is 74743993.

It is a happy number.

39934747 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39934747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39934697 and 39934706.

It is not an unprimeable number, because it can be changed into a prime (39934757) 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, 38143 + ... + 39175.

It is an arithmetic number, because the mean of its divisors is an integer number (5080042).

Almost surely, 2^39934747 is an apocalyptic number.

39934747 is a deficient number, since it is larger than the sum of its proper divisors (705589).

39934747 is a wasteful number, since it uses less digits than its factorization.

39934747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677.

The product of its digits is 571536, while the sum is 46.

The square root of 39934747 is about 6319.3945121348. The cubic root of 39934747 is about 341.8091196845.

The spelling of 39934747 in words is "thirty-nine million, nine hundred thirty-four thousand, seven hundred forty-seven".