632878039 has 2 divisors, whose sum is σ = 632878040. Its totient is φ = 632878038.

The previous prime is 632878033. The next prime is 632878061. The reversal of 632878039 is 930878236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 632878039 - 2³ = 632878031 is a prime.

It is a super-2 number, since 2×632878039² = 801069224496971042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 632878039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (632878031) 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, 316439019 + 316439020.

It is an arithmetic number, because the mean of its divisors is an integer number (316439020).

Almost surely, 2^632878039 is an apocalyptic number.

632878039 is a deficient number, since it is larger than the sum of its proper divisors (1).

632878039 is an equidigital number, since it uses as much as digits as its factorization.

632878039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 632878039 is about 25157.0673767830. The cubic root of 632878039 is about 858.5653197765.

The spelling of 632878039 in words is "six hundred thirty-two million, eight hundred seventy-eight thousand, thirty-nine".