634326427 has 16 divisors (see below), whose sum is σ = 733557760. Its totient is φ = 537272352.

The previous prime is 634326403. The next prime is 634326437. The reversal of 634326427 is 724623436.

It is a cyclic number.

It is not a de Polignac number, because 634326427 - 2⁷ = 634326299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (634326437) 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 15 ways as a sum of consecutive naturals, for example, 592849 + ... + 593917.

It is an arithmetic number, because the mean of its divisors is an integer number (45847360).

Almost surely, 2^634326427 is an apocalyptic number.

634326427 is a deficient number, since it is larger than the sum of its proper divisors (99231333).

634326427 is a wasteful number, since it uses less digits than its factorization.

634326427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002.

The product of its digits is 145152, while the sum is 37.

The square root of 634326427 is about 25185.8378260482. The cubic root of 634326427 is about 859.2197840877.

The spelling of 634326427 in words is "six hundred thirty-four million, three hundred twenty-six thousand, four hundred twenty-seven".