3642635023 has 2 divisors, whose sum is σ = 3642635024. Its totient is φ = 3642635022.

The previous prime is 3642634981. The next prime is 3642635047. The reversal of 3642635023 is 3205362463.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3642635023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3642635023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3642635723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821317511 + 1821317512.

It is an arithmetic number, because the mean of its divisors is an integer number (1821317512).

Almost surely, 2^3642635023 is an apocalyptic number.

3642635023 is a deficient number, since it is larger than the sum of its proper divisors (1).

3642635023 is an equidigital number, since it uses as much as digits as its factorization.

3642635023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 34.

The square root of 3642635023 is about 60354.2461058044. The cubic root of 3642635023 is about 1538.6454360641.

Adding to 3642635023 its reverse (3205362463), we get a palindrome (6847997486).

The spelling of 3642635023 in words is "three billion, six hundred forty-two million, six hundred thirty-five thousand, twenty-three".