228901699 has 4 divisors (see below), whose sum is σ = 246509536. Its totient is φ = 211293864.

The previous prime is 228901693. The next prime is 228901711. The reversal of 228901699 is 996109822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228901699 - 2³ = 228901691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228901691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8803899 + ... + 8803924.

It is an arithmetic number, because the mean of its divisors is an integer number (61627384).

Almost surely, 2^228901699 is an apocalyptic number.

228901699 is a deficient number, since it is larger than the sum of its proper divisors (17607837).

228901699 is a wasteful number, since it uses less digits than its factorization.

228901699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17607836.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 228901699 is about 15129.4976453285. The cubic root of 228901699 is about 611.7157634276.

The spelling of 228901699 in words is "two hundred twenty-eight million, nine hundred one thousand, six hundred ninety-nine".