2634649 has 2 divisors, whose sum is σ = 2634650. Its totient is φ = 2634648.

The previous prime is 2634631. The next prime is 2634689. The reversal of 2634649 is 9464362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1440000 + 1194649 = 1200^2 + 1093^2 .

It is a cyclic number.

It is not a de Polignac number, because 2634649 - 2¹¹ = 2632601 is a prime.

It is not a weakly prime, because it can be changed into another prime (2634629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1317324 + 1317325.

It is an arithmetic number, because the mean of its divisors is an integer number (1317325).

2^2634649 is an apocalyptic number.

It is an amenable number.

2634649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2634649 is an equidigital number, since it uses as much as digits as its factorization.

2634649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 34.

The square root of 2634649 is about 1623.1601892604. The cubic root of 2634649 is about 138.1150234736.

The spelling of 2634649 in words is "two million, six hundred thirty-four thousand, six hundred forty-nine".