2782469 has 2 divisors, whose sum is σ = 2782470. Its totient is φ = 2782468.

The previous prime is 2782421. The next prime is 2782489. The reversal of 2782469 is 9642872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2765569 + 16900 = 1663^2 + 130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2782469 is a prime.

It is a super-2 number, since 2×2782469² = 15484267471922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2782489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1391234 + 1391235.

It is an arithmetic number, because the mean of its divisors is an integer number (1391235).

2^2782469 is an apocalyptic number.

It is an amenable number.

2782469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2782469 is an equidigital number, since it uses as much as digits as its factorization.

2782469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 2782469 is about 1668.0734396303. The cubic root of 2782469 is about 140.6512009781.

The spelling of 2782469 in words is "two million, seven hundred eighty-two thousand, four hundred sixty-nine".