2851939 has 2 divisors, whose sum is σ = 2851940. Its totient is φ = 2851938.

The previous prime is 2851921. The next prime is 2851943. The reversal of 2851939 is 9391582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2851939 - 2¹³ = 2843747 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2851898 and 2851907.

It is not a weakly prime, because it can be changed into another prime (2851909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1425969 + 1425970.

It is an arithmetic number, because the mean of its divisors is an integer number (1425970).

2^2851939 is an apocalyptic number.

2851939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2851939 is an equidigital number, since it uses as much as digits as its factorization.

2851939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 37.

The square root of 2851939 is about 1688.7684862053. The cubic root of 2851939 is about 141.8121399937.

The spelling of 2851939 in words is "two million, eight hundred fifty-one thousand, nine hundred thirty-nine".