229378847 has 4 divisors (see below), whose sum is σ = 234259296. Its totient is φ = 224498400.

The previous prime is 229378829. The next prime is 229378861. The reversal of 229378847 is 748873922.

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 229378847 - 2¹⁸ = 229116703 is a prime.

It is a super-2 number, since 2×229378847² = 105229310902098818, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 229378795 and 229378804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229378867) 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, 2440154 + ... + 2440247.

It is an arithmetic number, because the mean of its divisors is an integer number (58564824).

Almost surely, 2^229378847 is an apocalyptic number.

229378847 is a deficient number, since it is larger than the sum of its proper divisors (4880449).

229378847 is an equidigital number, since it uses as much as digits as its factorization.

229378847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880448.

The product of its digits is 1354752, while the sum is 50.

The square root of 229378847 is about 15145.2582348404. The cubic root of 229378847 is about 612.1405110823.

The spelling of 229378847 in words is "two hundred twenty-nine million, three hundred seventy-eight thousand, eight hundred forty-seven".