632490779 has 2 divisors, whose sum is σ = 632490780. Its totient is φ = 632490778.

The previous prime is 632490773. The next prime is 632490821. The reversal of 632490779 is 977094236.

632490779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-632490779 is a prime.

It is not a weakly prime, because it can be changed into another prime (632490773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316245389 + 316245390.

It is an arithmetic number, because the mean of its divisors is an integer number (316245390).

Almost surely, 2^632490779 is an apocalyptic number.

632490779 is a deficient number, since it is larger than the sum of its proper divisors (1).

632490779 is an equidigital number, since it uses as much as digits as its factorization.

632490779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 632490779 is about 25149.3693559103. The cubic root of 632490779 is about 858.3901644674.

The spelling of 632490779 in words is "six hundred thirty-two million, four hundred ninety thousand, seven hundred seventy-nine".