899871001 has 2 divisors, whose sum is σ = 899871002. Its totient is φ = 899871000.

The previous prime is 899870987. The next prime is 899871017. The reversal of 899871001 is 100178998.

899871001 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., 602653401 + 297217600 = 24549^2 + 17240^2 .

It is a cyclic number.

It is not a de Polignac number, because 899871001 - 2²⁹ = 363000089 is a prime.

It is not a weakly prime, because it can be changed into another prime (899871101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449935500 + 449935501.

It is an arithmetic number, because the mean of its divisors is an integer number (449935501).

Almost surely, 2^899871001 is an apocalyptic number.

It is an amenable number.

899871001 is a deficient number, since it is larger than the sum of its proper divisors (1).

899871001 is an equidigital number, since it uses as much as digits as its factorization.

899871001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 43.

The square root of 899871001 is about 29997.8499396207. The cubic root of 899871001 is about 965.4432538219.

The spelling of 899871001 in words is "eight hundred ninety-nine million, eight hundred seventy-one thousand, one".