629091439 has 2 divisors, whose sum is σ = 629091440. Its totient is φ = 629091438.

The previous prime is 629091433. The next prime is 629091473. The reversal of 629091439 is 934190926.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 629091439 - 2⁹ = 629090927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 629091395 and 629091404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (629091433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314545719 + 314545720.

It is an arithmetic number, because the mean of its divisors is an integer number (314545720).

Almost surely, 2^629091439 is an apocalyptic number.

629091439 is a deficient number, since it is larger than the sum of its proper divisors (1).

629091439 is an equidigital number, since it uses as much as digits as its factorization.

629091439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 629091439 is about 25081.6952975671. The cubic root of 629091439 is about 856.8495869406.

The spelling of 629091439 in words is "six hundred twenty-nine million, ninety-one thousand, four hundred thirty-nine".