274426897 has 2 divisors, whose sum is σ = 274426898. Its totient is φ = 274426896.

The previous prime is 274426853. The next prime is 274426909. The reversal of 274426897 is 798624472.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270569601 + 3857296 = 16449^2 + 1964^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274426897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 274426897.

It is not a weakly prime, because it can be changed into another prime (274426297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137213448 + 137213449.

It is an arithmetic number, because the mean of its divisors is an integer number (137213449).

Almost surely, 2^274426897 is an apocalyptic number.

It is an amenable number.

274426897 is a deficient number, since it is larger than the sum of its proper divisors (1).

274426897 is an equidigital number, since it uses as much as digits as its factorization.

274426897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 49.

The square root of 274426897 is about 16565.8352339989. The cubic root of 274426897 is about 649.8436681235.

The spelling of 274426897 in words is "two hundred seventy-four million, four hundred twenty-six thousand, eight hundred ninety-seven".