230621633 has 4 divisors (see below), whose sum is σ = 251587248. Its totient is φ = 209656020.

The previous prime is 230621627. The next prime is 230621669. The reversal of 230621633 is 336126032.

230621633 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, 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 230621633 - 2¹² = 230617537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230621233) 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, 10482791 + ... + 10482812.

It is an arithmetic number, because the mean of its divisors is an integer number (62896812).

Almost surely, 2^230621633 is an apocalyptic number.

It is an amenable number.

230621633 is a deficient number, since it is larger than the sum of its proper divisors (20965615).

230621633 is a wasteful number, since it uses less digits than its factorization.

230621633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20965614.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 230621633 is about 15186.2316918978. The cubic root of 230621633 is about 613.2440563646.

Adding to 230621633 its reverse (336126032), we get a palindrome (566747665).

The spelling of 230621633 in words is "two hundred thirty million, six hundred twenty-one thousand, six hundred thirty-three".