3906049 has 4 divisors (see below), whose sum is σ = 4464064. Its totient is φ = 3348036.

The previous prime is 3906043. The next prime is 3906059. The reversal of 3906049 is 9406093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9406093 = 1223 ⋅7691.

It is a cyclic number.

It is not a de Polignac number, because 3906049 - 2⁵ = 3906017 is a prime.

It is a Duffinian number.

3906049 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3906049.

It is not an unprimeable number, because it can be changed into a prime (3906043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278997 + ... + 279010.

It is an arithmetic number, because the mean of its divisors is an integer number (1116016).

Almost surely, 2^3906049 is an apocalyptic number.

It is an amenable number.

3906049 is a deficient number, since it is larger than the sum of its proper divisors (558015).

3906049 is an equidigital number, since it uses as much as digits as its factorization.

3906049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558014.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 3906049 is about 1976.3726875263. The cubic root of 3906049 is about 157.4874299198.

The spelling of 3906049 in words is "three million, nine hundred six thousand, forty-nine".