995259217 has 2 divisors, whose sum is σ = 995259218. Its totient is φ = 995259216.

The previous prime is 995259193. The next prime is 995259227. The reversal of 995259217 is 712952599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 606341376 + 388917841 = 24624^2 + 19721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-995259217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (995259227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497629608 + 497629609.

It is an arithmetic number, because the mean of its divisors is an integer number (497629609).

Almost surely, 2^995259217 is an apocalyptic number.

It is an amenable number.

995259217 is a deficient number, since it is larger than the sum of its proper divisors (1).

995259217 is an equidigital number, since it uses as much as digits as its factorization.

995259217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 510300, while the sum is 49.

The square root of 995259217 is about 31547.7291892776. The cubic root of 995259217 is about 998.4172351772.

It can be divided in two parts, 9952 and 59217, that added together give a square (69169 = 263²).

The spelling of 995259217 in words is "nine hundred ninety-five million, two hundred fifty-nine thousand, two hundred seventeen".