3949755 has 16 divisors (see below), whose sum is σ = 6428160. Its totient is φ = 2070368.

The previous prime is 3949733. The next prime is 3949793. The reversal of 3949755 is 5579493.

It is a cyclic number.

It is not a de Polignac number, because 3949755 - 2⁵ = 3949723 is a prime.

3949755 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1347 + ... + 3116.

It is an arithmetic number, because the mean of its divisors is an integer number (401760).

Almost surely, 2^3949755 is an apocalyptic number.

3949755 is a deficient number, since it is larger than the sum of its proper divisors (2478405).

3949755 is a wasteful number, since it uses less digits than its factorization.

3949755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4530.

The product of its digits is 170100, while the sum is 42.

The square root of 3949755 is about 1987.3990540402. The cubic root of 3949755 is about 158.0726445843.

It can be divided in two parts, 39 and 49755, that added together give a palindrome (49794).

The spelling of 3949755 in words is "three million, nine hundred forty-nine thousand, seven hundred fifty-five".