2228930947 has 4 divisors (see below), whose sum is σ = 2229588576. Its totient is φ = 2228273320.

The previous prime is 2228930939. The next prime is 2228931073. The reversal of 2228930947 is 7490398222.

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 2228930947 - 2³ = 2228930939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2228930897 and 2228930906.

It is not an unprimeable number, because it can be changed into a prime (2228930047) 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, 323704 + ... + 330517.

It is an arithmetic number, because the mean of its divisors is an integer number (557397144).

Almost surely, 2^2228930947 is an apocalyptic number.

2228930947 is a deficient number, since it is larger than the sum of its proper divisors (657629).

2228930947 is an equidigital number, since it uses as much as digits as its factorization.

2228930947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657628.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 2228930947 is about 47211.5552275076. Note that the first 3 decimals coincide. The cubic root of 2228930947 is about 1306.2677496058.

The spelling of 2228930947 in words is "two billion, two hundred twenty-eight million, nine hundred thirty thousand, nine hundred forty-seven".