634345627 has 4 divisors (see below), whose sum is σ = 634439080. Its totient is φ = 634252176.

The previous prime is 634345619. The next prime is 634345637. The reversal of 634345627 is 726543436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 634345627 - 2³ = 634345619 is a prime.

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 634345627.

It is not an unprimeable number, because it can be changed into a prime (634345637) 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 in 3 ways as a sum of consecutive naturals, for example, 35673 + ... + 50410.

It is an arithmetic number, because the mean of its divisors is an integer number (158609770).

Almost surely, 2^634345627 is an apocalyptic number.

634345627 is a deficient number, since it is larger than the sum of its proper divisors (93453).

634345627 is an equidigital number, since it uses as much as digits as its factorization.

634345627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93452.

The product of its digits is 362880, while the sum is 40.

The square root of 634345627 is about 25186.2189897571. The cubic root of 634345627 is about 859.2284530488.

The spelling of 634345627 in words is "six hundred thirty-four million, three hundred forty-five thousand, six hundred twenty-seven".