274644047 has 2 divisors, whose sum is σ = 274644048. Its totient is φ = 274644046.

The previous prime is 274644023. The next prime is 274644049. The reversal of 274644047 is 740446472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 274644047 - 2¹² = 274639951 is a prime.

Together with 274644049, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 274644047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274644049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137322023 + 137322024.

It is an arithmetic number, because the mean of its divisors is an integer number (137322024).

Almost surely, 2^274644047 is an apocalyptic number.

274644047 is a deficient number, since it is larger than the sum of its proper divisors (1).

274644047 is an equidigital number, since it uses as much as digits as its factorization.

274644047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 38.

The square root of 274644047 is about 16572.3880898318. The cubic root of 274644047 is about 650.0150268715.

The spelling of 274644047 in words is "two hundred seventy-four million, six hundred forty-four thousand, forty-seven".