13648493 has 4 divisors (see below), whose sum is σ = 13656060. Its totient is φ = 13640928.

The previous prime is 13648483. The next prime is 13648511. The reversal of 13648493 is 39484631.

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 can be written as a sum of positive squares in 2 ways, for example, as 413449 + 13235044 = 643^2 + 3638^2 .

It is a cyclic number.

It is not a de Polignac number, because 13648493 - 2⁶ = 13648429 is a prime.

It is a super-2 number, since 2×13648493² = 372562722342098, 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 (13648483) 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, 671 + ... + 5267.

It is an arithmetic number, because the mean of its divisors is an integer number (3414015).

Almost surely, 2^13648493 is an apocalyptic number.

It is an amenable number.

13648493 is a deficient number, since it is larger than the sum of its proper divisors (7567).

13648493 is an equidigital number, since it uses as much as digits as its factorization.

13648493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7566.

The product of its digits is 62208, while the sum is 38.

The square root of 13648493 is about 3694.3866879362. The cubic root of 13648493 is about 238.9800056802.

It can be divided in two parts, 13648 and 493, that added together give a palindrome (14141).

The spelling of 13648493 in words is "thirteen million, six hundred forty-eight thousand, four hundred ninety-three".