2638201 has 2 divisors, whose sum is σ = 2638202. Its totient is φ = 2638200.

The previous prime is 2638199. The next prime is 2638231. The reversal of 2638201 is 1028362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1628176 + 1010025 = 1276^2 + 1005^2 .

It is a cyclic number.

It is not a de Polignac number, because 2638201 - 2¹ = 2638199 is a prime.

Together with 2638199, 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 (2638231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319100 + 1319101.

It is an arithmetic number, because the mean of its divisors is an integer number (1319101).

2^2638201 is an apocalyptic number.

It is an amenable number.

2638201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638201 is an equidigital number, since it uses as much as digits as its factorization.

2638201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2638201 is about 1624.2539826025. The cubic root of 2638201 is about 138.1770639025.

It can be divided in two parts, 263 and 8201, that added together give a square (8464 = 92²).

The spelling of 2638201 in words is "two million, six hundred thirty-eight thousand, two hundred one".