1366963 has 8 divisors (see below), whose sum is σ = 1493856. Its totient is φ = 1243200.

The previous prime is 1366957. The next prime is 1366979. The reversal of 1366963 is 3696631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1366963 - 2¹⁷ = 1235891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1366903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183 + ... + 1663.

It is an arithmetic number, because the mean of its divisors is an integer number (186732).

2^1366963 is an apocalyptic number.

1366963 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1366963 is a deficient number, since it is larger than the sum of its proper divisors (126893).

1366963 is a wasteful number, since it uses less digits than its factorization.

1366963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565.

The product of its digits is 17496, while the sum is 34.

The square root of 1366963 is about 1169.1719291875. The cubic root of 1366963 is about 110.9819249307.

The spelling of 1366963 in words is "one million, three hundred sixty-six thousand, nine hundred sixty-three".