228177047 has 4 divisors (see below), whose sum is σ = 260773776. Its totient is φ = 195580320.

The previous prime is 228177041. The next prime is 228177067. The reversal of 228177047 is 740771822.

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 228177047 - 2¹² = 228172951 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 228177047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228177041) 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, 16298354 + ... + 16298367.

It is an arithmetic number, because the mean of its divisors is an integer number (65193444).

Almost surely, 2^228177047 is an apocalyptic number.

228177047 is a deficient number, since it is larger than the sum of its proper divisors (32596729).

228177047 is an equidigital number, since it uses as much as digits as its factorization.

228177047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32596728.

The product of its (nonzero) digits is 43904, while the sum is 38.

The square root of 228177047 is about 15105.5303448770. The cubic root of 228177047 is about 611.0695622355.

The spelling of 228177047 in words is "two hundred twenty-eight million, one hundred seventy-seven thousand, forty-seven".