633640214 has 4 divisors (see below), whose sum is σ = 950460324. Its totient is φ = 316820106.

The previous prime is 633640171. The next prime is 633640237. The reversal of 633640214 is 412046336.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 158410052 + ... + 158410055.

It is an arithmetic number, because the mean of its divisors is an integer number (237615081).

Almost surely, 2^633640214 is an apocalyptic number.

633640214 is a deficient number, since it is larger than the sum of its proper divisors (316820110).

633640214 is a wasteful number, since it uses less digits than its factorization.

633640214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316820109.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 633640214 is about 25172.2111464210. The cubic root of 633640214 is about 858.9098382404.

The spelling of 633640214 in words is "six hundred thirty-three million, six hundred forty thousand, two hundred fourteen".