632940851 has 2 divisors, whose sum is σ = 632940852. Its totient is φ = 632940850.

The previous prime is 632940829. The next prime is 632940853. The reversal of 632940851 is 158049236.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-632940851 is a prime.

It is a super-2 number, since 2×632940851² = 801228241729208402, which contains 22 as substring.

Together with 632940853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (632940853) 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, 316470425 + 316470426.

It is an arithmetic number, because the mean of its divisors is an integer number (316470426).

Almost surely, 2^632940851 is an apocalyptic number.

632940851 is a deficient number, since it is larger than the sum of its proper divisors (1).

632940851 is an equidigital number, since it uses as much as digits as its factorization.

632940851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 632940851 is about 25158.3157425134. The cubic root of 632940851 is about 858.5937225216.

The spelling of 632940851 in words is "six hundred thirty-two million, nine hundred forty thousand, eight hundred fifty-one".