2724989 has 2 divisors, whose sum is σ = 2724990. Its totient is φ = 2724988.

The previous prime is 2724979. The next prime is 2725001. The reversal of 2724989 is 9894272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2280100 + 444889 = 1510^2 + 667^2 .

It is a cyclic number.

It is not a de Polignac number, because 2724989 - 2¹⁶ = 2659453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2724929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1362494 + 1362495.

It is an arithmetic number, because the mean of its divisors is an integer number (1362495).

2^2724989 is an apocalyptic number.

It is an amenable number.

2724989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2724989 is an equidigital number, since it uses as much as digits as its factorization.

2724989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 2724989 is about 1650.7540701146. The cubic root of 2724989 is about 139.6759341187.

The spelling of 2724989 in words is "two million, seven hundred twenty-four thousand, nine hundred eighty-nine".