633764253 has 16 divisors (see below), whose sum is σ = 867709440. Its totient is φ = 411303984.

The previous prime is 633764249. The next prime is 633764291. The reversal of 633764253 is 352467336.

It is a happy number.

It is not a de Polignac number, because 633764253 - 2² = 633764249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633764293) 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, 850 + ... + 35612.

It is an arithmetic number, because the mean of its divisors is an integer number (54231840).

Almost surely, 2^633764253 is an apocalyptic number.

It is an amenable number.

633764253 is a deficient number, since it is larger than the sum of its proper divisors (233945187).

633764253 is a wasteful number, since it uses less digits than its factorization.

633764253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34928.

The product of its digits is 272160, while the sum is 39.

The square root of 633764253 is about 25174.6748340470. The cubic root of 633764253 is about 858.9658802255.

The spelling of 633764253 in words is "six hundred thirty-three million, seven hundred sixty-four thousand, two hundred fifty-three".