634620203 has 4 divisors (see below), whose sum is σ = 725280240. Its totient is φ = 543960168.

The previous prime is 634620191. The next prime is 634620211. The reversal of 634620203 is 302026436.

634620203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 634620203 - 2⁶ = 634620139 is a prime.

It is a super-2 number, since 2×634620203² = 805485604111522418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634620293) 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, 45330008 + ... + 45330021.

It is an arithmetic number, because the mean of its divisors is an integer number (181320060).

Almost surely, 2^634620203 is an apocalyptic number.

634620203 is a deficient number, since it is larger than the sum of its proper divisors (90660037).

634620203 is an equidigital number, since it uses as much as digits as its factorization.

634620203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90660036.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 634620203 is about 25191.6693174549. The cubic root of 634620203 is about 859.3524072835.

Adding to 634620203 its reverse (302026436), we get a palindrome (936646639).

The spelling of 634620203 in words is "six hundred thirty-four million, six hundred twenty thousand, two hundred three".