228061667 has 4 divisors (see below), whose sum is σ = 228399216. Its totient is φ = 227724120.

The previous prime is 228061663. The next prime is 228061733. The reversal of 228061667 is 766160822.

It is a happy number.

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 228061667 - 2² = 228061663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228061667.

It is not an unprimeable number, because it can be changed into a prime (228061663) 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, 167759 + ... + 169112.

It is an arithmetic number, because the mean of its divisors is an integer number (57099804).

Almost surely, 2^228061667 is an apocalyptic number.

228061667 is a deficient number, since it is larger than the sum of its proper divisors (337549).

228061667 is an equidigital number, since it uses as much as digits as its factorization.

228061667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337548.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 228061667 is about 15101.7107309073. The cubic root of 228061667 is about 610.9665470634.

The spelling of 228061667 in words is "two hundred twenty-eight million, sixty-one thousand, six hundred sixty-seven".