2789791 has 2 divisors, whose sum is σ = 2789792. Its totient is φ = 2789790.

The previous prime is 2789777. The next prime is 2789821. The reversal of 2789791 is 1979872.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2789791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2789701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394895 + 1394896.

It is an arithmetic number, because the mean of its divisors is an integer number (1394896).

2^2789791 is an apocalyptic number.

2789791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2789791 is an equidigital number, since it uses as much as digits as its factorization.

2789791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 43.

The square root of 2789791 is about 1670.2667451638. The cubic root of 2789791 is about 140.7744663312.

The spelling of 2789791 in words is "two million, seven hundred eighty-nine thousand, seven hundred ninety-one".