228785707 has 8 divisors (see below), whose sum is σ = 245952000. Its totient is φ = 212131944.

The previous prime is 228785701. The next prime is 228785719. The reversal of 228785707 is 707587822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228785707 - 2¹⁹ = 228261419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228785701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127207 + ... + 128992.

It is an arithmetic number, because the mean of its divisors is an integer number (30744000).

Almost surely, 2^228785707 is an apocalyptic number.

228785707 is a deficient number, since it is larger than the sum of its proper divisors (17166293).

228785707 is a wasteful number, since it uses less digits than its factorization.

228785707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256265.

The product of its (nonzero) digits is 439040, while the sum is 46.

The square root of 228785707 is about 15125.6638532000. The cubic root of 228785707 is about 611.6124204884.

The spelling of 228785707 in words is "two hundred twenty-eight million, seven hundred eighty-five thousand, seven hundred seven".