2904689 has 2 divisors, whose sum is σ = 2904690. Its totient is φ = 2904688.

The previous prime is 2904673. The next prime is 2904709. The reversal of 2904689 is 9864092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 1227664 = 1295^2 + 1108^2 .

It is a cyclic number.

It is not a de Polignac number, because 2904689 - 2⁴ = 2904673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2904619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1452344 + 1452345.

It is an arithmetic number, because the mean of its divisors is an integer number (1452345).

2^2904689 is an apocalyptic number.

It is an amenable number.

2904689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2904689 is an equidigital number, since it uses as much as digits as its factorization.

2904689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 2904689 is about 1704.3148183361. The cubic root of 2904689 is about 142.6811321354.

The spelling of 2904689 in words is "two million, nine hundred four thousand, six hundred eighty-nine".