2904491 has 2 divisors, whose sum is σ = 2904492. Its totient is φ = 2904490.

The previous prime is 2904487. The next prime is 2904529. The reversal of 2904491 is 1944092.

2904491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2904491 - 2² = 2904487 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2904791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1452245 + 1452246.

It is an arithmetic number, because the mean of its divisors is an integer number (1452246).

2^2904491 is an apocalyptic number.

2904491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2904491 is an equidigital number, since it uses as much as digits as its factorization.

2904491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 2904491 is about 1704.2567294865. The cubic root of 2904491 is about 142.6778900779.

The spelling of 2904491 in words is "two million, nine hundred four thousand, four hundred ninety-one".