274798949 has 2 divisors, whose sum is σ = 274798950. Its totient is φ = 274798948.

The previous prime is 274798921. The next prime is 274798987. The reversal of 274798949 is 949897472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238918849 + 35880100 = 15457^2 + 5990^2 .

It is a cyclic number.

It is not a de Polignac number, because 274798949 - 2²⁸ = 6363493 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271798949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137399474 + 137399475.

It is an arithmetic number, because the mean of its divisors is an integer number (137399475).

Almost surely, 2^274798949 is an apocalyptic number.

It is an amenable number.

274798949 is a deficient number, since it is larger than the sum of its proper divisors (1).

274798949 is an equidigital number, since it uses as much as digits as its factorization.

274798949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 59.

The square root of 274798949 is about 16577.0609276796. The cubic root of 274798949 is about 650.1372089043.

The spelling of 274798949 in words is "two hundred seventy-four million, seven hundred ninety-eight thousand, nine hundred forty-nine".