2233678621 has 4 divisors (see below), whose sum is σ = 2233805212. Its totient is φ = 2233552032.

The previous prime is 2233678609. The next prime is 2233678651. The reversal of 2233678621 is 1268763322.

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

It can be written as a sum of positive squares in 2 ways, for example, as 249956100 + 1983722521 = 15810^2 + 44539^2 .

It is a cyclic number.

It is not a de Polignac number, because 2233678621 - 2²⁵ = 2200124189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2233678651) 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, 31506 + ... + 73891.

It is an arithmetic number, because the mean of its divisors is an integer number (558451303).

Almost surely, 2^2233678621 is an apocalyptic number.

It is an amenable number.

2233678621 is a deficient number, since it is larger than the sum of its proper divisors (126591).

2233678621 is a wasteful number, since it uses less digits than its factorization.

2233678621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126590.

The product of its digits is 145152, while the sum is 40.

The square root of 2233678621 is about 47261.8093284631. The cubic root of 2233678621 is about 1307.1945519615.

The spelling of 2233678621 in words is "two billion, two hundred thirty-three million, six hundred seventy-eight thousand, six hundred twenty-one".