2949209 has 2 divisors, whose sum is σ = 2949210. Its totient is φ = 2949208.

The previous prime is 2949179. The next prime is 2949217. The reversal of 2949209 is 9029492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2088025 + 861184 = 1445^2 + 928^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2949209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2949229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1474604 + 1474605.

It is an arithmetic number, because the mean of its divisors is an integer number (1474605).

2^2949209 is an apocalyptic number.

It is an amenable number.

2949209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2949209 is an equidigital number, since it uses as much as digits as its factorization.

2949209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 2949209 is about 1717.3261192913. The cubic root of 2949209 is about 143.4063944571.

The spelling of 2949209 in words is "two million, nine hundred forty-nine thousand, two hundred nine".