885040217 has 2 divisors, whose sum is σ = 885040218. Its totient is φ = 885040216.

The previous prime is 885040171. The next prime is 885040223. The reversal of 885040217 is 712040588.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469328896 + 415711321 = 21664^2 + 20389^2 .

It is a cyclic number.

It is not a de Polignac number, because 885040217 - 2⁶ = 885040153 is a prime.

It is not a weakly prime, because it can be changed into another prime (885042217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442520108 + 442520109.

It is an arithmetic number, because the mean of its divisors is an integer number (442520109).

Almost surely, 2^885040217 is an apocalyptic number.

It is an amenable number.

885040217 is a deficient number, since it is larger than the sum of its proper divisors (1).

885040217 is an equidigital number, since it uses as much as digits as its factorization.

885040217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 885040217 is about 29749.6254934411. The cubic root of 885040217 is about 960.1100195813.

The spelling of 885040217 in words is "eight hundred eighty-five million, forty thousand, two hundred seventeen".