228929807 has 4 divisors (see below), whose sum is σ = 234253800. Its totient is φ = 223605816.

The previous prime is 228929783. The next prime is 228929839. The reversal of 228929807 is 708929822.

228929807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708929822 = 2 ⋅354464911.

It is a cyclic number.

It is not a de Polignac number, because 228929807 - 2²² = 224735503 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 (228929867) 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, 2661932 + ... + 2662017.

It is an arithmetic number, because the mean of its divisors is an integer number (58563450).

Almost surely, 2^228929807 is an apocalyptic number.

228929807 is a deficient number, since it is larger than the sum of its proper divisors (5323993).

228929807 is an equidigital number, since it uses as much as digits as its factorization.

228929807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323992.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 228929807 is about 15130.4265306699. The cubic root of 228929807 is about 611.7408009627.

The spelling of 228929807 in words is "two hundred twenty-eight million, nine hundred twenty-nine thousand, eight hundred seven".