1383731 has 2 divisors, whose sum is σ = 1383732. Its totient is φ = 1383730.

The previous prime is 1383691. The next prime is 1383737. The reversal of 1383731 is 1373831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1383731 - 2⁶ = 1383667 is a prime.

It is a super-2 number, since 2×1383731² = 3829422960722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1383731.

It is not a weakly prime, because it can be changed into another prime (1383737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691865 + 691866.

It is an arithmetic number, because the mean of its divisors is an integer number (691866).

2^1383731 is an apocalyptic number.

1383731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1383731 is an equidigital number, since it uses as much as digits as its factorization.

1383731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 1383731 is about 1176.3209596024. The cubic root of 1383731 is about 111.4338725915.

The spelling of 1383731 in words is "one million, three hundred eighty-three thousand, seven hundred thirty-one".