3949479 has 12 divisors (see below), whose sum is σ = 5916456. Its totient is φ = 2632824.

The previous prime is 3949469. The next prime is 3949487. The reversal of 3949479 is 9749493.

It is not a de Polignac number, because 3949479 - 2¹¹ = 3947431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949409) 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, 7884 + ... + 8369.

It is an arithmetic number, because the mean of its divisors is an integer number (493038).

Almost surely, 2^3949479 is an apocalyptic number.

3949479 is a deficient number, since it is larger than the sum of its proper divisors (1966977).

3949479 is an equidigital number, since it uses as much as digits as its factorization.

3949479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16268 (or 16256 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 3949479 is about 1987.3296153381. The cubic root of 3949479 is about 158.0689625782.

The spelling of 3949479 in words is "three million, nine hundred forty-nine thousand, four hundred seventy-nine".