899635073 has 2 divisors, whose sum is σ = 899635074. Its totient is φ = 899635072.

The previous prime is 899635069. The next prime is 899635081. The reversal of 899635073 is 370536998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 683927104 + 215707969 = 26152^2 + 14687^2 .

It is a cyclic number.

It is not a de Polignac number, because 899635073 - 2² = 899635069 is a prime.

It is not a weakly prime, because it can be changed into another prime (899635043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449817536 + 449817537.

It is an arithmetic number, because the mean of its divisors is an integer number (449817537).

Almost surely, 2^899635073 is an apocalyptic number.

It is an amenable number.

899635073 is a deficient number, since it is larger than the sum of its proper divisors (1).

899635073 is an equidigital number, since it uses as much as digits as its factorization.

899635073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 899635073 is about 29993.9172666726. The cubic root of 899635073 is about 965.3588732071.

The spelling of 899635073 in words is "eight hundred ninety-nine million, six hundred thirty-five thousand, seventy-three".