39846705 has 16 divisors (see below), whose sum is σ = 67110720. Its totient is φ = 20132928.

The previous prime is 39846673. The next prime is 39846707. The reversal of 39846705 is 50764893.

It is a happy number.

It is not a de Polignac number, because 39846705 - 2⁵ = 39846673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39846707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69622 + ... + 70191.

It is an arithmetic number, because the mean of its divisors is an integer number (4194420).

Almost surely, 2^39846705 is an apocalyptic number.

It is an amenable number.

39846705 is a deficient number, since it is larger than the sum of its proper divisors (27264015).

39846705 is a wasteful number, since it uses less digits than its factorization.

39846705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139840.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 39846705 is about 6312.4246530157. The cubic root of 39846705 is about 341.5577454376.

The spelling of 39846705 in words is "thirty-nine million, eight hundred forty-six thousand, seven hundred five".