2787023 has 2 divisors, whose sum is σ = 2787024. Its totient is φ = 2787022.

The previous prime is 2787019. The next prime is 2787049. The reversal of 2787023 is 3207872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2787023 - 2² = 2787019 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2787013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1393511 + 1393512.

It is an arithmetic number, because the mean of its divisors is an integer number (1393512).

2^2787023 is an apocalyptic number.

2787023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2787023 is an equidigital number, since it uses as much as digits as its factorization.

2787023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 2787023 is about 1669.4379293643. The cubic root of 2787023 is about 140.7278926312.

The spelling of 2787023 in words is "two million, seven hundred eighty-seven thousand, twenty-three".