1374326647 has 2 divisors, whose sum is σ = 1374326648. Its totient is φ = 1374326646.

The previous prime is 1374326621. The next prime is 1374326669. The reversal of 1374326647 is 7466234731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1374326647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1374326747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687163323 + 687163324.

It is an arithmetic number, because the mean of its divisors is an integer number (687163324).

Almost surely, 2^1374326647 is an apocalyptic number.

1374326647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374326647 is an equidigital number, since it uses as much as digits as its factorization.

1374326647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 43.

The square root of 1374326647 is about 37071.9118336241. The cubic root of 1374326647 is about 1111.8084976260.

The spelling of 1374326647 in words is "one billion, three hundred seventy-four million, three hundred twenty-six thousand, six hundred forty-seven".