39849707 has 12 divisors (see below), whose sum is σ = 42373296. Its totient is φ = 37469520.

The previous prime is 39849701. The next prime is 39849709. The reversal of 39849707 is 70794893.

It is a de Polignac number, because none of the positive numbers 2^k-39849707 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39849701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59957 + ... + 60617.

It is an arithmetic number, because the mean of its divisors is an integer number (3531108).

Almost surely, 2^39849707 is an apocalyptic number.

39849707 is a deficient number, since it is larger than the sum of its proper divisors (2523589).

39849707 is a wasteful number, since it uses less digits than its factorization.

39849707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 39849707 is about 6312.6624335537. The cubic root of 39849707 is about 341.5663227307.

It can be divided in two parts, 398 and 49707, that added together give a palindrome (50105).

The spelling of 39849707 in words is "thirty-nine million, eight hundred forty-nine thousand, seven hundred seven".