2999999 has 2 divisors, whose sum is σ = 3000000.
Its totient is φ = 2999998.
The previous prime is 2999957. The next prime is 3000017. The reversal of 2999999 is 9999992.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2999999 is a prime.
It is a Chen prime.
2999999 is a modest number, since divided by 9999 gives 299 as remainder.
It is a plaindrome in base 10.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2999099) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1499999 + 1500000.
It is an arithmetic number, because the mean of its divisors is an integer number (1500000).
22999999 is an apocalyptic number.
2999999 is a deficient number, since it is larger than the sum of its proper divisors (1).
2999999 is an equidigital number, since it uses as much as digits as its factorization.
2999999 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1062882, while the sum is 56.
The square root of 2999999 is about 1732.0505188937.
The cubic root of 2999999 is about 144.2249410057.
It can be divided in two parts, 2 and 999999, that added together give a palindrome (1000001).
The spelling of 2999999 in words is "two million, nine hundred ninety-nine thousand, nine hundred ninety-nine".