999995273 has 2 divisors, whose sum is σ = 999995274. Its totient is φ = 999995272.

The previous prime is 999995261. The next prime is 999995291. The reversal of 999995273 is 372599999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 625650169 + 374345104 = 25013^2 + 19348^2 .

It is a cyclic number.

It is not a de Polignac number, because 999995273 - 2⁴ = 999995257 is a prime.

It is not a weakly prime, because it can be changed into another prime (999994273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499997636 + 499997637.

It is an arithmetic number, because the mean of its divisors is an integer number (499997637).

Almost surely, 2^999995273 is an apocalyptic number.

It is an amenable number.

999995273 is a deficient number, since it is larger than the sum of its proper divisors (1).

999995273 is an equidigital number, since it uses as much as digits as its factorization.

999995273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12400290, while the sum is 62.

The square root of 999995273 is about 31622.7018611630. The cubic root of 999995273 is about 999.9984243309.

The spelling of 999995273 in words is "nine hundred ninety-nine million, nine hundred ninety-five thousand, two hundred seventy-three".