1383913 has 2 divisors, whose sum is σ = 1383914. Its totient is φ = 1383912.

The previous prime is 1383901. The next prime is 1383917. The reversal of 1383913 is 3193831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 861184 + 522729 = 928^2 + 723^2 .

It is an emirp because it is prime and its reverse (3193831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1383913 - 2⁵ = 1383881 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, 691956 + 691957.

It is an arithmetic number, because the mean of its divisors is an integer number (691957).

2^1383913 is an apocalyptic number.

It is an amenable number.

1383913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1383913 is an equidigital number, since it uses as much as digits as its factorization.

1383913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 28.

The square root of 1383913 is about 1176.3983168978. The cubic root of 1383913 is about 111.4387579523.

The spelling of 1383913 in words is "one million, three hundred eighty-three thousand, nine hundred thirteen".