228886947 has 12 divisors (see below), whose sum is σ = 330762744. Its totient is φ = 152522880.

The previous prime is 228886943. The next prime is 228886949. The reversal of 228886947 is 749688822.

It is not a de Polignac number, because 228886947 - 2² = 228886943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228886893 and 228886902.

It is not an unprimeable number, because it can be changed into a prime (228886943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23188 + ... + 31550.

It is an arithmetic number, because the mean of its divisors is an integer number (27563562).

Almost surely, 2^228886947 is an apocalyptic number.

228886947 is a deficient number, since it is larger than the sum of its proper divisors (101875797).

228886947 is a wasteful number, since it uses less digits than its factorization.

228886947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11410 (or 11407 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 228886947 is about 15129.0101130246. The cubic root of 228886947 is about 611.7026220882.

The spelling of 228886947 in words is "two hundred twenty-eight million, eight hundred eighty-six thousand, nine hundred forty-seven".