633314381 has 4 divisors (see below), whose sum is σ = 723787872. Its totient is φ = 542840892.

The previous prime is 633314377. The next prime is 633314393. The reversal of 633314381 is 183413336.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 633314381 - 2² = 633314377 is a prime.

It is a super-2 number, since 2×633314381² = 802174210362826322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633314371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45236735 + ... + 45236748.

It is an arithmetic number, because the mean of its divisors is an integer number (180946968).

Almost surely, 2^633314381 is an apocalyptic number.

It is an amenable number.

633314381 is a deficient number, since it is larger than the sum of its proper divisors (90473491).

633314381 is an equidigital number, since it uses as much as digits as its factorization.

633314381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90473490.

The product of its digits is 15552, while the sum is 32.

The square root of 633314381 is about 25165.7382367377. The cubic root of 633314381 is about 858.7625889827.

The spelling of 633314381 in words is "six hundred thirty-three million, three hundred fourteen thousand, three hundred eighty-one".