13394563 has 32 divisors (see below), whose sum is σ = 17776640. Its totient is φ = 9797760.

The previous prime is 13394561. The next prime is 13394567. The reversal of 13394563 is 36549331.

It is not a de Polignac number, because 13394563 - 2¹ = 13394561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13394561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105406 + ... + 105532.

It is an arithmetic number, because the mean of its divisors is an integer number (555520).

Almost surely, 2^13394563 is an apocalyptic number.

13394563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13394563 is a deficient number, since it is larger than the sum of its proper divisors (4382077).

13394563 is a wasteful number, since it uses less digits than its factorization.

13394563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227.

The product of its digits is 29160, while the sum is 34.

The square root of 13394563 is about 3659.8583305915. The cubic root of 13394563 is about 237.4886450712.

The spelling of 13394563 in words is "thirteen million, three hundred ninety-four thousand, five hundred sixty-three".