899742227 has 2 divisors, whose sum is σ = 899742228. Its totient is φ = 899742226.

The previous prime is 899742203. The next prime is 899742229. The reversal of 899742227 is 722247998.

899742227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 899742227 - 2⁶ = 899742163 is a prime.

Together with 899742229, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (899742229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449871113 + 449871114.

It is an arithmetic number, because the mean of its divisors is an integer number (449871114).

Almost surely, 2^899742227 is an apocalyptic number.

899742227 is a deficient number, since it is larger than the sum of its proper divisors (1).

899742227 is an equidigital number, since it uses as much as digits as its factorization.

899742227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 50.

The square root of 899742227 is about 29995.7034756646. The cubic root of 899742227 is about 965.3971991021.

The spelling of 899742227 in words is "eight hundred ninety-nine million, seven hundred forty-two thousand, two hundred twenty-seven".