228167477 has 2 divisors, whose sum is σ = 228167478. Its totient is φ = 228167476.

The previous prime is 228167449. The next prime is 228167483. The reversal of 228167477 is 774761822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165662641 + 62504836 = 12871^2 + 7906^2 .

It is a cyclic number.

It is not a de Polignac number, because 228167477 - 2¹⁰ = 228166453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228167497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114083738 + 114083739.

It is an arithmetic number, because the mean of its divisors is an integer number (114083739).

Almost surely, 2^228167477 is an apocalyptic number.

It is an amenable number.

228167477 is a deficient number, since it is larger than the sum of its proper divisors (1).

228167477 is an equidigital number, since it uses as much as digits as its factorization.

228167477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 263424, while the sum is 44.

The square root of 228167477 is about 15105.2135701552. The cubic root of 228167477 is about 611.0610191363.

The spelling of 228167477 in words is "two hundred twenty-eight million, one hundred sixty-seven thousand, four hundred seventy-seven".