2819788 has 6 divisors (see below), whose sum is σ = 4934636. Its totient is φ = 1409892.

The previous prime is 2819783. The next prime is 2819797. The reversal of 2819788 is 8879182.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2819783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352470 + ... + 352477.

2^2819788 is an apocalyptic number.

It is an amenable number.

2819788 is a deficient number, since it is larger than the sum of its proper divisors (2114848).

2819788 is a wasteful number, since it uses less digits than its factorization.

2819788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704951 (or 704949 counting only the distinct ones).

The product of its digits is 64512, while the sum is 43.

The square root of 2819788 is about 1679.2224391069. Note that the first 3 decimals coincide. The cubic root of 2819788 is about 141.2772239797.

The spelling of 2819788 in words is "two million, eight hundred nineteen thousand, seven hundred eighty-eight".