228885727 has 4 divisors (see below), whose sum is σ = 261583696. Its totient is φ = 196187760.

The previous prime is 228885659. The next prime is 228885731. The reversal of 228885727 is 727588822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228885727 - 2¹⁹ = 228361439 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 (228885227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16348974 + ... + 16348987.

It is an arithmetic number, because the mean of its divisors is an integer number (65395924).

Almost surely, 2^228885727 is an apocalyptic number.

228885727 is a deficient number, since it is larger than the sum of its proper divisors (32697969).

228885727 is an equidigital number, since it uses as much as digits as its factorization.

228885727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32697968.

The product of its digits is 1003520, while the sum is 49.

The square root of 228885727 is about 15128.9697930824. The cubic root of 228885727 is about 611.7015352656.

The spelling of 228885727 in words is "two hundred twenty-eight million, eight hundred eighty-five thousand, seven hundred twenty-seven".