229609785 has 16 divisors (see below), whose sum is σ = 370629504. Its totient is φ = 121373952.

The previous prime is 229609697. The next prime is 229609801. The reversal of 229609785 is 587906922.

It is not a de Polignac number, because 229609785 - 2⁷ = 229609657 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66037 + ... + 69426.

It is an arithmetic number, because the mean of its divisors is an integer number (23164344).

Almost surely, 2^229609785 is an apocalyptic number.

It is an amenable number.

229609785 is a deficient number, since it is larger than the sum of its proper divisors (141019719).

229609785 is a wasteful number, since it uses less digits than its factorization.

229609785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135584.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 229609785 is about 15152.8804192470. The cubic root of 229609785 is about 612.3458759786.

The spelling of 229609785 in words is "two hundred twenty-nine million, six hundred nine thousand, seven hundred eighty-five".