228347867 has 4 divisors (see below), whose sum is σ = 249106776. Its totient is φ = 207588960.

The previous prime is 228347863. The next prime is 228347881. The reversal of 228347867 is 768743822.

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 228347867 - 2² = 228347863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228347863) 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, 10379438 + ... + 10379459.

It is an arithmetic number, because the mean of its divisors is an integer number (62276694).

Almost surely, 2^228347867 is an apocalyptic number.

228347867 is a deficient number, since it is larger than the sum of its proper divisors (20758909).

228347867 is a wasteful number, since it uses less digits than its factorization.

228347867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20758908.

The product of its digits is 903168, while the sum is 47.

The square root of 228347867 is about 15111.1835075880. The cubic root of 228347867 is about 611.2220123713. Note that the first 3 decimals are identical.

The spelling of 228347867 in words is "two hundred twenty-eight million, three hundred forty-seven thousand, eight hundred sixty-seven".