1375727 has 2 divisors, whose sum is σ = 1375728. Its totient is φ = 1375726.

The previous prime is 1375723. The next prime is 1375729. The reversal of 1375727 is 7275731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1375727 - 2² = 1375723 is a prime.

Together with 1375729, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1375693 and 1375702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1375723) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687863 + 687864.

It is an arithmetic number, because the mean of its divisors is an integer number (687864).

2^1375727 is an apocalyptic number.

1375727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375727 is an equidigital number, since it uses as much as digits as its factorization.

1375727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10290, while the sum is 32.

The square root of 1375727 is about 1172.9138928327. The cubic root of 1375727 is about 111.2185990576.

The spelling of 1375727 in words is "one million, three hundred seventy-five thousand, seven hundred twenty-seven".