1748661427 has 2 divisors, whose sum is σ = 1748661428. Its totient is φ = 1748661426.

The previous prime is 1748661391. The next prime is 1748661433. The reversal of 1748661427 is 7241668471.

It is a strong prime.

It is an emirp because it is prime and its reverse (7241668471) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1748661427 - 2²³ = 1740272819 is a prime.

It is not a weakly prime, because it can be changed into another prime (1748671427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 874330713 + 874330714.

It is an arithmetic number, because the mean of its divisors is an integer number (874330714).

Almost surely, 2^1748661427 is an apocalyptic number.

1748661427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1748661427 is an equidigital number, since it uses as much as digits as its factorization.

1748661427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 46.

The square root of 1748661427 is about 41816.9992586747. Note that the first 3 decimals coincide. The cubic root of 1748661427 is about 1204.7638012047.

The spelling of 1748661427 in words is "one billion, seven hundred forty-eight million, six hundred sixty-one thousand, four hundred twenty-seven".