3949347605 has 32 divisors (see below), whose sum is σ = 5832103680. Its totient is φ = 2505600000.

The previous prime is 3949347529. The next prime is 3949347607. The reversal of 3949347605 is 5067439493.

3949347605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3949347605 - 2¹⁸ = 3949085461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949347607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21146 + ... + 91355.

It is an arithmetic number, because the mean of its divisors is an integer number (182253240).

Almost surely, 2^3949347605 is an apocalyptic number.

3949347605 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3949347605 is a deficient number, since it is larger than the sum of its proper divisors (1882756075).

3949347605 is a wasteful number, since it uses less digits than its factorization.

3949347605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112589.

The product of its (nonzero) digits is 2449440, while the sum is 50.

The square root of 3949347605 is about 62843.8350596142. The cubic root of 3949347605 is about 1580.6720962953.

The spelling of 3949347605 in words is "three billion, nine hundred forty-nine million, three hundred forty-seven thousand, six hundred five".