2633649 has 4 divisors (see below), whose sum is σ = 3511536. Its totient is φ = 1755764.

The previous prime is 2633641. The next prime is 2633651. The reversal of 2633649 is 9463362.

2633649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2633649 - 2³ = 2633641 is a prime.

It is a super-2 number, since 2×2633649² = 13872214110402, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2²¹ + 6 + 3⁶ + 3¹² + 6³ + 4⁶ + 9 .

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2633641) 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 in 3 ways as a sum of consecutive naturals, for example, 438939 + ... + 438944.

It is an arithmetic number, because the mean of its divisors is an integer number (877884).

2^2633649 is an apocalyptic number.

It is an amenable number.

2633649 is a deficient number, since it is larger than the sum of its proper divisors (877887).

2633649 is an equidigital number, since it uses as much as digits as its factorization.

2633649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877886.

The product of its digits is 23328, while the sum is 33.

The square root of 2633649 is about 1622.8521189560. The cubic root of 2633649 is about 138.0975470784.

The spelling of 2633649 in words is "two million, six hundred thirty-three thousand, six hundred forty-nine".