2792861 has 2 divisors, whose sum is σ = 2792862. Its totient is φ = 2792860.

The previous prime is 2792843. The next prime is 2792863. The reversal of 2792861 is 1682972.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2343961 + 448900 = 1531^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 2792861 - 2¹⁰ = 2791837 is a prime.

Together with 2792863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2792863) 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, 1396430 + 1396431.

It is an arithmetic number, because the mean of its divisors is an integer number (1396431).

2^2792861 is an apocalyptic number.

It is an amenable number.

2792861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2792861 is an equidigital number, since it uses as much as digits as its factorization.

2792861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 2792861 is about 1671.1855073570. The cubic root of 2792861 is about 140.8260853927.

The spelling of 2792861 in words is "two million, seven hundred ninety-two thousand, eight hundred sixty-one".