3638462287 has 2 divisors, whose sum is σ = 3638462288. Its totient is φ = 3638462286.

The previous prime is 3638462273. The next prime is 3638462381. The reversal of 3638462287 is 7822648363.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3638462287 - 2⁷ = 3638462159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3638462287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3638462227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1819231143 + 1819231144.

It is an arithmetic number, because the mean of its divisors is an integer number (1819231144).

Almost surely, 2^3638462287 is an apocalyptic number.

3638462287 is a deficient number, since it is larger than the sum of its proper divisors (1).

3638462287 is an equidigital number, since it uses as much as digits as its factorization.

3638462287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 49.

The square root of 3638462287 is about 60319.6674974257. The cubic root of 3638462287 is about 1538.0576917262.

The spelling of 3638462287 in words is "three billion, six hundred thirty-eight million, four hundred sixty-two thousand, two hundred eighty-seven".