13782563 has 8 divisors (see below), whose sum is σ = 14731632. Its totient is φ = 12848896.

The previous prime is 13782557. The next prime is 13782583. The reversal of 13782563 is 36528731.

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 13782563 - 2⁶ = 13782499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13782553) 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 in 7 ways as a sum of consecutive naturals, for example, 1970 + ... + 5607.

It is an arithmetic number, because the mean of its divisors is an integer number (1841454).

Almost surely, 2^13782563 is an apocalyptic number.

13782563 is a deficient number, since it is larger than the sum of its proper divisors (949069).

13782563 is a wasteful number, since it uses less digits than its factorization.

13782563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7701.

The product of its digits is 30240, while the sum is 35.

The square root of 13782563 is about 3712.4874410562. The cubic root of 13782563 is about 239.7599625514.

The spelling of 13782563 in words is "thirteen million, seven hundred eighty-two thousand, five hundred sixty-three".