629764873 has 4 divisors (see below), whose sum is σ = 629838720. Its totient is φ = 629691028.

The previous prime is 629764843. The next prime is 629764897. The reversal of 629764873 is 378467926.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 629764873 - 2⁹ = 629764361 is a prime.

It is a super-2 number, since 2×629764873² = 793207590529412258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 629764873.

It is not an unprimeable number, because it can be changed into a prime (629764843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22165 + ... + 41842.

It is an arithmetic number, because the mean of its divisors is an integer number (157459680).

Almost surely, 2^629764873 is an apocalyptic number.

It is an amenable number.

629764873 is a deficient number, since it is larger than the sum of its proper divisors (73847).

629764873 is an equidigital number, since it uses as much as digits as its factorization.

629764873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73846.

The product of its digits is 3048192, while the sum is 52.

The square root of 629764873 is about 25095.1165169640. The cubic root of 629764873 is about 857.1552265927.

The spelling of 629764873 in words is "six hundred twenty-nine million, seven hundred sixty-four thousand, eight hundred seventy-three".