228647971 has 8 divisors (see below), whose sum is σ = 236265344. Its totient is φ = 221045760.

The previous prime is 228647933. The next prime is 228647981. The reversal of 228647971 is 179746822.

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 228647971 - 2²³ = 220259363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228647981) 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, 32545 + ... + 38941.

It is an arithmetic number, because the mean of its divisors is an integer number (29533168).

Almost surely, 2^228647971 is an apocalyptic number.

228647971 is a deficient number, since it is larger than the sum of its proper divisors (7617373).

228647971 is a wasteful number, since it uses less digits than its factorization.

228647971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7581.

The product of its digits is 338688, while the sum is 46.

The square root of 228647971 is about 15121.1101113642. The cubic root of 228647971 is about 611.4896593825.

The spelling of 228647971 in words is "two hundred twenty-eight million, six hundred forty-seven thousand, nine hundred seventy-one".