1383947 has 2 divisors, whose sum is σ = 1383948. Its totient is φ = 1383946.

The previous prime is 1383937. The next prime is 1383959. The reversal of 1383947 is 7493831.

It is a weak prime.

It is an emirp because it is prime and its reverse (7493831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1383947 - 2⁸ = 1383691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1383917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691973 + 691974.

It is an arithmetic number, because the mean of its divisors is an integer number (691974).

2^1383947 is an apocalyptic number.

1383947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1383947 is an equidigital number, since it uses as much as digits as its factorization.

1383947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 1383947 is about 1176.4127676968. The cubic root of 1383947 is about 111.4396705547.

The spelling of 1383947 in words is "one million, three hundred eighty-three thousand, nine hundred forty-seven".