1363623 has 4 divisors (see below), whose sum is σ = 1818168. Its totient is φ = 909080.

The previous prime is 1363603. The next prime is 1363627. The reversal of 1363623 is 3263631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1363623 - 2⁶ = 1363559 is a prime.

It is a super-2 number, since 2×1363623² = 3718935372258, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 1363593 and 1363602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227268 + ... + 227273.

It is an arithmetic number, because the mean of its divisors is an integer number (454542).

2^1363623 is an apocalyptic number.

1363623 is a deficient number, since it is larger than the sum of its proper divisors (454545).

1363623 is an equidigital number, since it uses as much as digits as its factorization.

1363623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454544.

The product of its digits is 1944, while the sum is 24.

The square root of 1363623 is about 1167.7426942610. The cubic root of 1363623 is about 110.8914611452.

It can be divided in two parts, 13 and 63623, that added together give a palindrome (63636).

The spelling of 1363623 in words is "one million, three hundred sixty-three thousand, six hundred twenty-three".