899211307 has 2 divisors, whose sum is σ = 899211308. Its totient is φ = 899211306.

The previous prime is 899211263. The next prime is 899211319. The reversal of 899211307 is 703112998.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-899211307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 899211307.

It is not a weakly prime, because it can be changed into another prime (899211367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449605653 + 449605654.

It is an arithmetic number, because the mean of its divisors is an integer number (449605654).

Almost surely, 2^899211307 is an apocalyptic number.

899211307 is a deficient number, since it is larger than the sum of its proper divisors (1).

899211307 is an equidigital number, since it uses as much as digits as its factorization.

899211307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 899211307 is about 29986.8522356049. The cubic root of 899211307 is about 965.2072745090.

The spelling of 899211307 in words is "eight hundred ninety-nine million, two hundred eleven thousand, three hundred seven".