229078789 has 4 divisors (see below), whose sum is σ = 231440524. Its totient is φ = 226717056.

The previous prime is 229078741. The next prime is 229078813. The reversal of 229078789 is 987870922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117353889 + 111724900 = 10833^2 + 10570^2 .

It is a cyclic number.

It is not a de Polignac number, because 229078789 - 2¹⁷ = 228947717 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 (229075789) 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, 1180722 + ... + 1180915.

It is an arithmetic number, because the mean of its divisors is an integer number (57860131).

Almost surely, 2^229078789 is an apocalyptic number.

It is an amenable number.

229078789 is a deficient number, since it is larger than the sum of its proper divisors (2361735).

229078789 is an equidigital number, since it uses as much as digits as its factorization.

229078789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361734.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 229078789 is about 15135.3489883782. The cubic root of 229078789 is about 611.8734742424.

The spelling of 229078789 in words is "two hundred twenty-nine million, seventy-eight thousand, seven hundred eighty-nine".