228687277 has 8 divisors (see below), whose sum is σ = 281461376. Its totient is φ = 180939312.

The previous prime is 228687271. The next prime is 228687293. The reversal of 228687277 is 772786822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228687277 - 2⁷ = 228687149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228687277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228687271) 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 in 7 ways as a sum of consecutive naturals, for example, 1256433 + ... + 1256614.

It is an arithmetic number, because the mean of its divisors is an integer number (35182672).

Almost surely, 2^228687277 is an apocalyptic number.

It is an amenable number.

228687277 is a deficient number, since it is larger than the sum of its proper divisors (52774099).

228687277 is a wasteful number, since it uses less digits than its factorization.

228687277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513067.

The product of its digits is 1053696, while the sum is 49.

The square root of 228687277 is about 15122.4097616749. The cubic root of 228687277 is about 611.5246969926.

The spelling of 228687277 in words is "two hundred twenty-eight million, six hundred eighty-seven thousand, two hundred seventy-seven".