228943487 has 8 divisors (see below), whose sum is σ = 238083840. Its totient is φ = 219886240.

The previous prime is 228943469. The next prime is 228943543. The reversal of 228943487 is 784349822.

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 228943487 - 2¹⁶ = 228877951 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 (228943427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15128 + ... + 26205.

It is an arithmetic number, because the mean of its divisors is an integer number (29760480).

Almost surely, 2^228943487 is an apocalyptic number.

228943487 is a deficient number, since it is larger than the sum of its proper divisors (9140353).

228943487 is a wasteful number, since it uses less digits than its factorization.

228943487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41553.

The product of its digits is 774144, while the sum is 47.

The square root of 228943487 is about 15130.8785931287. The cubic root of 228943487 is about 611.7529858439.

The spelling of 228943487 in words is "two hundred twenty-eight million, nine hundred forty-three thousand, four hundred eighty-seven".