899761129 has 2 divisors, whose sum is σ = 899761130. Its totient is φ = 899761128.

The previous prime is 899761123. The next prime is 899761139. The reversal of 899761129 is 921167998.

899761129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 792535104 + 107226025 = 28152^2 + 10355^2 .

It is a cyclic number.

It is not a de Polignac number, because 899761129 - 2¹⁹ = 899236841 is a prime.

It is not a weakly prime, because it can be changed into another prime (899761123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449880564 + 449880565.

It is an arithmetic number, because the mean of its divisors is an integer number (449880565).

Almost surely, 2^899761129 is an apocalyptic number.

It is an amenable number.

899761129 is a deficient number, since it is larger than the sum of its proper divisors (1).

899761129 is an equidigital number, since it uses as much as digits as its factorization.

899761129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 52.

The square root of 899761129 is about 29996.0185524679. The cubic root of 899761129 is about 965.4039594865.

The spelling of 899761129 in words is "eight hundred ninety-nine million, seven hundred sixty-one thousand, one hundred twenty-nine".