1365983 has 2 divisors, whose sum is σ = 1365984. Its totient is φ = 1365982.

The previous prime is 1365979. The next prime is 1366009. The reversal of 1365983 is 3895631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1365983 - 2² = 1365979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1365913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682991 + 682992.

It is an arithmetic number, because the mean of its divisors is an integer number (682992).

2^1365983 is an apocalyptic number.

1365983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1365983 is an equidigital number, since it uses as much as digits as its factorization.

1365983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 35.

The square root of 1365983 is about 1168.7527540075. The cubic root of 1365983 is about 110.9553969539.

The spelling of 1365983 in words is "one million, three hundred sixty-five thousand, nine hundred eighty-three".