3909049 has 2 divisors, whose sum is σ = 3909050. Its totient is φ = 3909048.

The previous prime is 3909043. The next prime is 3909083. The reversal of 3909049 is 9409093.

It is an a-pointer prime, because the next prime (3909083) can be obtained adding 3909049 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3125824 + 783225 = 1768^2 + 885^2 .

It is a cyclic number.

It is not a de Polignac number, because 3909049 - 2⁷ = 3908921 is a prime.

3909049 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3909043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1954524 + 1954525.

It is an arithmetic number, because the mean of its divisors is an integer number (1954525).

Almost surely, 2^3909049 is an apocalyptic number.

It is an amenable number.

3909049 is a deficient number, since it is larger than the sum of its proper divisors (1).

3909049 is an equidigital number, since it uses as much as digits as its factorization.

3909049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 3909049 is about 1977.1315080186. The cubic root of 3909049 is about 157.5277384587.

The spelling of 3909049 in words is "three million, nine hundred nine thousand, forty-nine".