229782709 has 6 divisors (see below), whose sum is σ = 248818146. Its totient is φ = 212106960.

The previous prime is 229782703. The next prime is 229782739. The reversal of 229782709 is 907287922.

It can be written as a sum of positive squares in 3 ways, for example, as 32239684 + 197543025 = 5678^2 + 14055^2 .

It is not a de Polignac number, because 229782709 - 2³ = 229782701 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 (229782701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 679662 + ... + 679999.

It is an arithmetic number, because the mean of its divisors is an integer number (41469691).

Almost surely, 2^229782709 is an apocalyptic number.

It is an amenable number.

229782709 is a deficient number, since it is larger than the sum of its proper divisors (19035437).

229782709 is a wasteful number, since it uses less digits than its factorization.

229782709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359687 (or 1359674 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 229782709 is about 15158.5853231758. The cubic root of 229782709 is about 612.4995609604.

The spelling of 229782709 in words is "two hundred twenty-nine million, seven hundred eighty-two thousand, seven hundred nine".