274666397 has 2 divisors, whose sum is σ = 274666398. Its totient is φ = 274666396.

The previous prime is 274666373. The next prime is 274666439. The reversal of 274666397 is 793666472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189915961 + 84750436 = 13781^2 + 9206^2 .

It is a cyclic number.

It is not a de Polignac number, because 274666397 - 2¹⁰ = 274665373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274665397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137333198 + 137333199.

It is an arithmetic number, because the mean of its divisors is an integer number (137333199).

Almost surely, 2^274666397 is an apocalyptic number.

It is an amenable number.

274666397 is a deficient number, since it is larger than the sum of its proper divisors (1).

274666397 is an equidigital number, since it uses as much as digits as its factorization.

274666397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 50.

The square root of 274666397 is about 16573.0623905179. The cubic root of 274666397 is about 650.0326587141.

The spelling of 274666397 in words is "two hundred seventy-four million, six hundred sixty-six thousand, three hundred ninety-seven".