899619673 has 2 divisors, whose sum is σ = 899619674. Its totient is φ = 899619672.

The previous prime is 899619667. The next prime is 899619713. The reversal of 899619673 is 376916998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 648619024 + 251000649 = 25468^2 + 15843^2 .

It is a cyclic number.

It is not a de Polignac number, because 899619673 - 2¹³ = 899611481 is a prime.

It is not a weakly prime, because it can be changed into another prime (899616673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449809836 + 449809837.

It is an arithmetic number, because the mean of its divisors is an integer number (449809837).

Almost surely, 2^899619673 is an apocalyptic number.

It is an amenable number.

899619673 is a deficient number, since it is larger than the sum of its proper divisors (1).

899619673 is an equidigital number, since it uses as much as digits as its factorization.

899619673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 58.

The square root of 899619673 is about 29993.6605468556. The cubic root of 899619673 is about 965.3533648212.

The spelling of 899619673 in words is "eight hundred ninety-nine million, six hundred nineteen thousand, six hundred seventy-three".