632691313 has 2 divisors, whose sum is σ = 632691314. Its totient is φ = 632691312.

The previous prime is 632691233. The next prime is 632691341. The reversal of 632691313 is 313196236.

632691313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 339185889 + 293505424 = 18417^2 + 17132^2 .

It is a cyclic number.

It is not a de Polignac number, because 632691313 - 2⁹ = 632690801 is a prime.

It is not a weakly prime, because it can be changed into another prime (632691343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316345656 + 316345657.

It is an arithmetic number, because the mean of its divisors is an integer number (316345657).

Almost surely, 2^632691313 is an apocalyptic number.

It is an amenable number.

632691313 is a deficient number, since it is larger than the sum of its proper divisors (1).

632691313 is an equidigital number, since it uses as much as digits as its factorization.

632691313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 34.

The square root of 632691313 is about 25153.3558993626. The cubic root of 632691313 is about 858.4808736814.

The spelling of 632691313 in words is "six hundred thirty-two million, six hundred ninety-one thousand, three hundred thirteen".