1387927 has 2 divisors, whose sum is σ = 1387928. Its totient is φ = 1387926.

The previous prime is 1387921. The next prime is 1387943. The reversal of 1387927 is 7297831.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1387927 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1387921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693963 + 693964.

It is an arithmetic number, because the mean of its divisors is an integer number (693964).

2^1387927 is an apocalyptic number.

1387927 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387927 is an equidigital number, since it uses as much as digits as its factorization.

1387927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 37.

The square root of 1387927 is about 1178.1031364019. The cubic root of 1387927 is about 111.5463955940.

The spelling of 1387927 in words is "one million, three hundred eighty-seven thousand, nine hundred twenty-seven".