13457663 has 4 divisors (see below), whose sum is σ = 13465008. Its totient is φ = 13450320.

The previous prime is 13457629. The next prime is 13457713. The reversal of 13457663 is 36675431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13457663 - 2⁸ = 13457407 is a prime.

It is a super-2 number, since 2×13457663² = 362217386843138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13457063) 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, 1595 + ... + 5427.

It is an arithmetic number, because the mean of its divisors is an integer number (3366252).

Almost surely, 2^13457663 is an apocalyptic number.

13457663 is a deficient number, since it is larger than the sum of its proper divisors (7345).

13457663 is an equidigital number, since it uses as much as digits as its factorization.

13457663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7344.

The product of its digits is 45360, while the sum is 35.

The square root of 13457663 is about 3668.4687541262. The cubic root of 13457663 is about 237.8609867763.

The spelling of 13457663 in words is "thirteen million, four hundred fifty-seven thousand, six hundred sixty-three".