2785794997 has 2 divisors, whose sum is σ = 2785794998. Its totient is φ = 2785794996.

The previous prime is 2785794901. The next prime is 2785795043. The reversal of 2785794997 is 7994975872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2780347441 + 5447556 = 52729^2 + 2334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2785794997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2785794197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392897498 + 1392897499.

It is an arithmetic number, because the mean of its divisors is an integer number (1392897499).

Almost surely, 2^2785794997 is an apocalyptic number.

It is an amenable number.

2785794997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785794997 is an equidigital number, since it uses as much as digits as its factorization.

2785794997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80015040, while the sum is 67.

The square root of 2785794997 is about 52780.6308886129. The cubic root of 2785794997 is about 1407.0722067384.

The spelling of 2785794997 in words is "two billion, seven hundred eighty-five million, seven hundred ninety-four thousand, nine hundred ninety-seven".