228219983 has 4 divisors (see below), whose sum is σ = 228414408. Its totient is φ = 228025560.

The previous prime is 228219977. The next prime is 228219989. The reversal of 228219983 is 389912822.

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

It is an interprime number because it is at equal distance from previous prime (228219977) and next prime (228219989).

It is a cyclic number.

It is not a de Polignac number, because 228219983 - 2⁴ = 228219967 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 (228219989) 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, 95441 + ... + 97802.

It is an arithmetic number, because the mean of its divisors is an integer number (57103602).

Almost surely, 2^228219983 is an apocalyptic number.

228219983 is a deficient number, since it is larger than the sum of its proper divisors (194425).

228219983 is a wasteful number, since it uses less digits than its factorization.

228219983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194424.

The product of its digits is 124416, while the sum is 44.

The square root of 228219983 is about 15106.9514793687. The cubic root of 228219983 is about 611.1078880846.

The spelling of 228219983 in words is "two hundred twenty-eight million, two hundred nineteen thousand, nine hundred eighty-three".