885474817 has 2 divisors, whose sum is σ = 885474818. Its totient is φ = 885474816.

The previous prime is 885474781. The next prime is 885474823. The reversal of 885474817 is 718474588.

Together with previous prime (885474781) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 871961841 + 13512976 = 29529^2 + 3676^2 .

It is a cyclic number.

It is not a de Polignac number, because 885474817 - 2¹⁹ = 884950529 is a prime.

It is not a weakly prime, because it can be changed into another prime (885472817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442737408 + 442737409.

It is an arithmetic number, because the mean of its divisors is an integer number (442737409).

Almost surely, 2^885474817 is an apocalyptic number.

It is an amenable number.

885474817 is a deficient number, since it is larger than the sum of its proper divisors (1).

885474817 is an equidigital number, since it uses as much as digits as its factorization.

885474817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2007040, while the sum is 52.

The square root of 885474817 is about 29756.9288905962. The cubic root of 885474817 is about 960.2671482352.

The spelling of 885474817 in words is "eight hundred eighty-five million, four hundred seventy-four thousand, eight hundred seventeen".