2638633 has 2 divisors, whose sum is σ = 2638634. Its totient is φ = 2638632.

The previous prime is 2638631. The next prime is 2638651. The reversal of 2638633 is 3368362.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2601769 + 36864 = 1613^2 + 192^2 .

It is a cyclic number.

It is not a de Polignac number, because 2638633 - 2¹ = 2638631 is a prime.

Together with 2638631, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2⁵ + 6² + 3² + 8⁷ + 6⁵ + 3⁷ + 3¹² .

It is a junction number, because it is equal to n+sod(n) for n = 2638595 and 2638604.

It is not a weakly prime, because it can be changed into another prime (2638631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319316 + 1319317.

It is an arithmetic number, because the mean of its divisors is an integer number (1319317).

2^2638633 is an apocalyptic number.

It is an amenable number.

2638633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638633 is an equidigital number, since it uses as much as digits as its factorization.

2638633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 31.

The square root of 2638633 is about 1624.3869612872. The cubic root of 2638633 is about 138.1846055611.

The spelling of 2638633 in words is "two million, six hundred thirty-eight thousand, six hundred thirty-three".