995959859 has 2 divisors, whose sum is σ = 995959860. Its totient is φ = 995959858.

The previous prime is 995959831. The next prime is 995959931. The reversal of 995959859 is 958959599.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-995959859 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (995953859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497979929 + 497979930.

It is an arithmetic number, because the mean of its divisors is an integer number (497979930).

Almost surely, 2^995959859 is an apocalyptic number.

995959859 is a deficient number, since it is larger than the sum of its proper divisors (1).

995959859 is an equidigital number, since it uses as much as digits as its factorization.

995959859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59049000, while the sum is 68.

The square root of 995959859 is about 31558.8317115827. The cubic root of 995959859 is about 998.6514686139.

The spelling of 995959859 in words is "nine hundred ninety-five million, nine hundred fifty-nine thousand, eight hundred fifty-nine".