2638793 has 2 divisors, whose sum is σ = 2638794. Its totient is φ = 2638792.

The previous prime is 2638787. The next prime is 2638841. The reversal of 2638793 is 3978362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2534464 + 104329 = 1592^2 + 323^2 .

It is a cyclic number.

It is not a de Polignac number, because 2638793 - 2¹⁰ = 2637769 is a prime.

It is not a weakly prime, because it can be changed into another prime (2638693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319396 + 1319397.

It is an arithmetic number, because the mean of its divisors is an integer number (1319397).

2^2638793 is an apocalyptic number.

It is an amenable number.

2638793 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638793 is an equidigital number, since it uses as much as digits as its factorization.

2638793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 2638793 is about 1624.4362098894. The cubic root of 2638793 is about 138.1873985591.

The spelling of 2638793 in words is "two million, six hundred thirty-eight thousand, seven hundred ninety-three".