632751979 has 2 divisors, whose sum is σ = 632751980. Its totient is φ = 632751978.

The previous prime is 632751949. The next prime is 632751989. The reversal of 632751979 is 979157236.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 632751979 - 2⁵ = 632751947 is a prime.

It is not a weakly prime, because it can be changed into another prime (632751949) 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, 316375989 + 316375990.

It is an arithmetic number, because the mean of its divisors is an integer number (316375990).

Almost surely, 2^632751979 is an apocalyptic number.

632751979 is a deficient number, since it is larger than the sum of its proper divisors (1).

632751979 is an equidigital number, since it uses as much as digits as its factorization.

632751979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 714420, while the sum is 49.

The square root of 632751979 is about 25154.5617930426. The cubic root of 632751979 is about 858.5083114619.

The spelling of 632751979 in words is "six hundred thirty-two million, seven hundred fifty-one thousand, nine hundred seventy-nine".