13263885 has 16 divisors (see below), whose sum is σ = 23580480. Its totient is φ = 7074000.

The previous prime is 13263853. The next prime is 13263889. The reversal of 13263885 is 58836231.

13263885 is a `hidden beast` number, since 13 + 2 + 638 + 8 + 5 = 666.

It is not a de Polignac number, because 13263885 - 2⁵ = 13263853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13263889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48991 + ... + 49260.

It is an arithmetic number, because the mean of its divisors is an integer number (1473780).

Almost surely, 2^13263885 is an apocalyptic number.

13263885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13263885 is a deficient number, since it is larger than the sum of its proper divisors (10316595).

13263885 is an equidigital number, since it uses as much as digits as its factorization.

13263885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98265 (or 98259 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 13263885 is about 3641.9616966684. The cubic root of 13263885 is about 236.7138029061.

The spelling of 13263885 in words is "thirteen million, two hundred sixty-three thousand, eight hundred eighty-five".