633538164 has 24 divisors (see below), whose sum is σ = 1689435328. Its totient is φ = 181010880.

The previous prime is 633538163. The next prime is 633538177. The reversal of 633538164 is 461835336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633538163) 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 7 ways as a sum of consecutive naturals, for example, 3770977 + ... + 3771144.

Almost surely, 2^633538164 is an apocalyptic number.

It is an amenable number.

633538164 is an abundant number, since it is smaller than the sum of its proper divisors (1055897164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

633538164 is a wasteful number, since it uses less digits than its factorization.

633538164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7542135 (or 7542133 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The square root of 633538164 is about 25170.1840279327. The cubic root of 633538164 is about 858.8637256079.

It can be divided in two parts, 63353 and 8164, that added together give a palindrome (71517).

The spelling of 633538164 in words is "six hundred thirty-three million, five hundred thirty-eight thousand, one hundred sixty-four".