634422165 has 32 divisors (see below), whose sum is σ = 1122715776. Its totient is φ = 303886080.

The previous prime is 634422163. The next prime is 634422169. The reversal of 634422165 is 561224436.

It is not a de Polignac number, because 634422165 - 2¹ = 634422163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634422163) 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 31 ways as a sum of consecutive naturals, for example, 36751 + ... + 51180.

It is an arithmetic number, because the mean of its divisors is an integer number (35084868).

Almost surely, 2^634422165 is an apocalyptic number.

634422165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

634422165 is a deficient number, since it is larger than the sum of its proper divisors (488293611).

634422165 is a wasteful number, since it uses less digits than its factorization.

634422165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87989.

The product of its digits is 34560, while the sum is 33.

The square root of 634422165 is about 25187.7383859687. The cubic root of 634422165 is about 859.2630088597.

The spelling of 634422165 in words is "six hundred thirty-four million, four hundred twenty-two thousand, one hundred sixty-five".