999795497 has 2 divisors, whose sum is σ = 999795498. Its totient is φ = 999795496.

The previous prime is 999795457. The next prime is 999795509. The reversal of 999795497 is 794597999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 976937536 + 22857961 = 31256^2 + 4781^2 .

It is a cyclic number.

It is not a de Polignac number, because 999795497 - 2¹⁴ = 999779113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (999795457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499897748 + 499897749.

It is an arithmetic number, because the mean of its divisors is an integer number (499897749).

Almost surely, 2^999795497 is an apocalyptic number.

It is an amenable number.

999795497 is a deficient number, since it is larger than the sum of its proper divisors (1).

999795497 is an equidigital number, since it uses as much as digits as its factorization.

999795497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57868020, while the sum is 68.

The square root of 999795497 is about 31619.5429600113. The cubic root of 999795497 is about 999.9318276860.

The spelling of 999795497 in words is "nine hundred ninety-nine million, seven hundred ninety-five thousand, four hundred ninety-seven".