632138827 has 2 divisors, whose sum is σ = 632138828. Its totient is φ = 632138826.

The previous prime is 632138813. The next prime is 632138849. The reversal of 632138827 is 728831236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 632138827 - 2¹⁹ = 631614539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 632138827.

It is not a weakly prime, because it can be changed into another prime (632138867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316069413 + 316069414.

It is an arithmetic number, because the mean of its divisors is an integer number (316069414).

Almost surely, 2^632138827 is an apocalyptic number.

632138827 is a deficient number, since it is larger than the sum of its proper divisors (1).

632138827 is an equidigital number, since it uses as much as digits as its factorization.

632138827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 632138827 is about 25142.3711491180. The cubic root of 632138827 is about 858.2309167230.

The spelling of 632138827 in words is "six hundred thirty-two million, one hundred thirty-eight thousand, eight hundred twenty-seven".