2939999 has 2 divisors, whose sum is σ = 2940000.
Its totient is φ = 2939998.
The previous prime is 2939977. The next prime is 2940011. The reversal of 2939999 is 9999392.
It is a strong prime.
2939999 is a truncatable prime.
It is a cyclic number.
It is not a de Polignac number, because 2939999 - 212 = 2935903 is a prime.
It is a super-6 number, since 6×29399996 (a number of 40 digits) contains 666666 as substring.
It is a Chen prime.
2939999 is a modest number, since divided by 9999 gives 293 as remainder.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2939399) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1469999 + 1470000.
It is an arithmetic number, because the mean of its divisors is an integer number (1470000).
22939999 is an apocalyptic number.
2939999 is a deficient number, since it is larger than the sum of its proper divisors (1).
2939999 is an equidigital number, since it uses as much as digits as its factorization.
2939999 is an evil number, because the sum of its binary digits is even.
The product of its digits is 354294, while the sum is 50.
The square root of 2939999 is about 1714.6425283423.
The cubic root of 2939999 is about 143.2569588908.
The spelling of 2939999 in words is "two million, nine hundred thirty-nine thousand, nine hundred ninety-nine".