999676999 has 2 divisors, whose sum is σ = 999677000. Its totient is φ = 999676998.

The previous prime is 999676957. The next prime is 999677033.

999676999 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 999676999 - 2¹⁵ = 999644231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999676949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499838499 + 499838500.

It is an arithmetic number, because the mean of its divisors is an integer number (499838500).

Almost surely, 2^999676999 is an apocalyptic number.

999676999 is a deficient number, since it is larger than the sum of its proper divisors (1).

999676999 is an equidigital number, since it uses as much as digits as its factorization.

999676999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 133923132, while the sum is 73.

The square root of 999676999 is about 31617.6690949855. The cubic root of 999676999 is about 999.8923214057.

The spelling of 999676999 in words is "nine hundred ninety-nine million, six hundred seventy-six thousand, nine hundred ninety-nine".