899775377 has 2 divisors, whose sum is σ = 899775378. Its totient is φ = 899775376.

The previous prime is 899775323. The next prime is 899775421. The reversal of 899775377 is 773577998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 536339281 + 363436096 = 23159^2 + 19064^2 .

It is a cyclic number.

It is not a de Polignac number, because 899775377 - 2¹⁰ = 899774353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (899775277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449887688 + 449887689.

It is an arithmetic number, because the mean of its divisors is an integer number (449887689).

Almost surely, 2^899775377 is an apocalyptic number.

It is an amenable number.

899775377 is a deficient number, since it is larger than the sum of its proper divisors (1).

899775377 is an equidigital number, since it uses as much as digits as its factorization.

899775377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23337720, while the sum is 62.

The square root of 899775377 is about 29996.2560497139. The cubic root of 899775377 is about 965.4090552846.

The spelling of 899775377 in words is "eight hundred ninety-nine million, seven hundred seventy-five thousand, three hundred seventy-seven".