629056391 has 2 divisors, whose sum is σ = 629056392. Its totient is φ = 629056390.

The previous prime is 629056357. The next prime is 629056397. The reversal of 629056391 is 193650926.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 629056391 - 2¹⁴ = 629040007 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (629056397) 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, 314528195 + 314528196.

It is an arithmetic number, because the mean of its divisors is an integer number (314528196).

Almost surely, 2^629056391 is an apocalyptic number.

629056391 is a deficient number, since it is larger than the sum of its proper divisors (1).

629056391 is an equidigital number, since it uses as much as digits as its factorization.

629056391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 629056391 is about 25080.9966109802. The cubic root of 629056391 is about 856.8336743508.

It can be divided in two parts, 62905 and 6391, that added together give a palindrome (69296).

The spelling of 629056391 in words is "six hundred twenty-nine million, fifty-six thousand, three hundred ninety-one".