228785699 has 8 divisors (see below), whose sum is σ = 234773952. Its totient is φ = 222816960.

The previous prime is 228785681. The next prime is 228785701. The reversal of 228785699 is 996587822.

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

It is not a de Polignac number, because 228785699 - 2⁸ = 228785443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228785399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20582 + ... + 29684.

It is an arithmetic number, because the mean of its divisors is an integer number (29346744).

Almost surely, 2^228785699 is an apocalyptic number.

228785699 is a deficient number, since it is larger than the sum of its proper divisors (5988253).

228785699 is an equidigital number, since it uses as much as digits as its factorization.

228785699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9757.

The product of its digits is 4354560, while the sum is 56.

The square root of 228785699 is about 15125.6635887488. The cubic root of 228785699 is about 611.6124133596.

The spelling of 228785699 in words is "two hundred twenty-eight million, seven hundred eighty-five thousand, six hundred ninety-nine".