228354947 has 4 divisors (see below), whose sum is σ = 228554496. Its totient is φ = 228155400.

The previous prime is 228354943. The next prime is 228354949. The reversal of 228354947 is 749453822.

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 228354947 - 2² = 228354943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228354898 and 228354907.

It is not an unprimeable number, because it can be changed into a prime (228354943) 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, 98048 + ... + 100349.

It is an arithmetic number, because the mean of its divisors is an integer number (57138624).

Almost surely, 2^228354947 is an apocalyptic number.

228354947 is a deficient number, since it is larger than the sum of its proper divisors (199549).

228354947 is a wasteful number, since it uses less digits than its factorization.

228354947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199548.

The product of its digits is 483840, while the sum is 44.

The square root of 228354947 is about 15111.4177693557. The cubic root of 228354947 is about 611.2283293519.

The spelling of 228354947 in words is "two hundred twenty-eight million, three hundred fifty-four thousand, nine hundred forty-seven".