2428649 has 2 divisors, whose sum is σ = 2428650. Its totient is φ = 2428648.

The previous prime is 2428627. The next prime is 2428651. The reversal of 2428649 is 9468242.

2428649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1545049 + 883600 = 1243^2 + 940^2 .

It is a cyclic number.

It is not a de Polignac number, because 2428649 - 2¹² = 2424553 is a prime.

Together with 2428651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2428249) 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, 1214324 + 1214325.

It is an arithmetic number, because the mean of its divisors is an integer number (1214325).

2^2428649 is an apocalyptic number.

It is an amenable number.

2428649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2428649 is an equidigital number, since it uses as much as digits as its factorization.

2428649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 35.

The square root of 2428649 is about 1558.4123331134. The cubic root of 2428649 is about 134.4172226429.

The spelling of 2428649 in words is "two million, four hundred twenty-eight thousand, six hundred forty-nine".