2790783 has 6 divisors (see below), whose sum is σ = 4031144. Its totient is φ = 1860516.

The previous prime is 2790779. The next prime is 2790841. The reversal of 2790783 is 3870972.

It is not a de Polignac number, because 2790783 - 2² = 2790779 is a prime.

It is a Duffinian number.

2790783 is a lucky number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2790883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155035 + ... + 155052.

2^2790783 is an apocalyptic number.

2790783 is a deficient number, since it is larger than the sum of its proper divisors (1240361).

2790783 is a wasteful number, since it uses less digits than its factorization.

2790783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310093 (or 310090 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 2790783 is about 1670.5636773257. The cubic root of 2790783 is about 140.7911499850.

The spelling of 2790783 in words is "two million, seven hundred ninety thousand, seven hundred eighty-three".