228292917 has 8 divisors (see below), whose sum is σ = 317625024. Its totient is φ = 145578048.

The previous prime is 228292907. The next prime is 228292937. The reversal of 228292917 is 719292822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228292917 - 2⁷ = 228292789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228292907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1654228 + ... + 1654365.

It is an arithmetic number, because the mean of its divisors is an integer number (39703128).

Almost surely, 2^228292917 is an apocalyptic number.

It is an amenable number.

228292917 is a deficient number, since it is larger than the sum of its proper divisors (89332107).

228292917 is a wasteful number, since it uses less digits than its factorization.

228292917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308619.

The product of its digits is 72576, while the sum is 42.

The square root of 228292917 is about 15109.3652083732. The cubic root of 228292917 is about 611.1729799535.

The spelling of 228292917 in words is "two hundred twenty-eight million, two hundred ninety-two thousand, nine hundred seventeen".