228736867 has 2 divisors, whose sum is σ = 228736868. Its totient is φ = 228736866.

The previous prime is 228736847. The next prime is 228736883. The reversal of 228736867 is 768637822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228736867 - 2¹¹ = 228734819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228736867.

It is not a weakly prime, because it can be changed into another prime (228736847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114368433 + 114368434.

It is an arithmetic number, because the mean of its divisors is an integer number (114368434).

Almost surely, 2^228736867 is an apocalyptic number.

228736867 is a deficient number, since it is larger than the sum of its proper divisors (1).

228736867 is an equidigital number, since it uses as much as digits as its factorization.

228736867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 49.

The square root of 228736867 is about 15124.0492924349. The cubic root of 228736867 is about 611.5688960963.

The spelling of 228736867 in words is "two hundred twenty-eight million, seven hundred thirty-six thousand, eight hundred sixty-seven".