228820679 has 4 divisors (see below), whose sum is σ = 229802976. Its totient is φ = 227838384.

The previous prime is 228820649. The next prime is 228820687. The reversal of 228820679 is 976028822.

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 228820679 - 2¹⁶ = 228755143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228820639) 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, 490799 + ... + 491264.

It is an arithmetic number, because the mean of its divisors is an integer number (57450744).

Almost surely, 2^228820679 is an apocalyptic number.

228820679 is a deficient number, since it is larger than the sum of its proper divisors (982297).

228820679 is an equidigital number, since it uses as much as digits as its factorization.

228820679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982296.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 228820679 is about 15126.8198574585. The cubic root of 228820679 is about 611.6435824289.

The spelling of 228820679 in words is "two hundred twenty-eight million, eight hundred twenty thousand, six hundred seventy-nine".