228764527 has 2 divisors, whose sum is σ = 228764528. Its totient is φ = 228764526.

The previous prime is 228764521. The next prime is 228764537. The reversal of 228764527 is 725467822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228764527 - 2³ = 228764519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228764521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114382263 + 114382264.

It is an arithmetic number, because the mean of its divisors is an integer number (114382264).

Almost surely, 2^228764527 is an apocalyptic number.

228764527 is a deficient number, since it is larger than the sum of its proper divisors (1).

228764527 is an equidigital number, since it uses as much as digits as its factorization.

228764527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 43.

The square root of 228764527 is about 15124.9637024358. The cubic root of 228764527 is about 611.5935464206.

The spelling of 228764527 in words is "two hundred twenty-eight million, seven hundred sixty-four thousand, five hundred twenty-seven".