2939873 has 2 divisors, whose sum is σ = 2939874. Its totient is φ = 2939872.

The previous prime is 2939869. The next prime is 2939879. The reversal of 2939873 is 3789392.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2050624 + 889249 = 1432^2 + 943^2 .

It is a cyclic number.

It is not a de Polignac number, because 2939873 - 2² = 2939869 is a prime.

It is a super-2 number, since 2×2939873² = 17285706512258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2939873.

It is not a weakly prime, because it can be changed into another prime (2939879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1469936 + 1469937.

It is an arithmetic number, because the mean of its divisors is an integer number (1469937).

2^2939873 is an apocalyptic number.

It is an amenable number.

2939873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2939873 is an equidigital number, since it uses as much as digits as its factorization.

2939873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 41.

The square root of 2939873 is about 1714.6057855962. The cubic root of 2939873 is about 143.2549123329.

The spelling of 2939873 in words is "two million, nine hundred thirty-nine thousand, eight hundred seventy-three".