3949635 has 16 divisors (see below), whose sum is σ = 6359040. Its totient is φ = 2093280.

The previous prime is 3949619. The next prime is 3949643. The reversal of 3949635 is 5369493.

It is not a de Polignac number, because 3949635 - 2⁴ = 3949619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3949593 and 3949602.

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, 1950 + ... + 3420.

It is an arithmetic number, because the mean of its divisors is an integer number (397440).

Almost surely, 2^3949635 is an apocalyptic number.

3949635 is a deficient number, since it is larger than the sum of its proper divisors (2409405).

3949635 is a wasteful number, since it uses less digits than its factorization.

3949635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658.

The product of its digits is 87480, while the sum is 39.

The square root of 3949635 is about 1987.3688635983. The cubic root of 3949635 is about 158.0710437331.

The spelling of 3949635 in words is "three million, nine hundred forty-nine thousand, six hundred thirty-five".