228656023 has 4 divisors (see below), whose sum is σ = 228688488. Its totient is φ = 228623560.

The previous prime is 228656017. The next prime is 228656083. The reversal of 228656023 is 320656822.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 228656023 - 2¹³ = 228647831 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 228656023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228656083) 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 3 ways as a sum of consecutive naturals, for example, 736 + ... + 21397.

It is an arithmetic number, because the mean of its divisors is an integer number (57172122).

Almost surely, 2^228656023 is an apocalyptic number.

228656023 is a deficient number, since it is larger than the sum of its proper divisors (32465).

228656023 is a wasteful number, since it uses less digits than its factorization.

228656023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32464.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 228656023 is about 15121.3763593133. The cubic root of 228656023 is about 611.4968373118.

The spelling of 228656023 in words is "two hundred twenty-eight million, six hundred fifty-six thousand, twenty-three".