13632705 has 40 divisors (see below), whose sum is σ = 25064424. Its totient is φ = 7084800.

The previous prime is 13632701. The next prime is 13632727. The reversal of 13632705 is 50723631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 82944 + 13549761 = 288^2 + 3681^2 .

It is not a de Polignac number, because 13632705 - 2² = 13632701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13632701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16195 + ... + 17015.

Almost surely, 2^13632705 is an apocalyptic number.

13632705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13632705 is a deficient number, since it is larger than the sum of its proper divisors (11431719).

13632705 is an equidigital number, since it uses as much as digits as its factorization.

13632705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 13632705 is about 3692.2493144423. The cubic root of 13632705 is about 238.8878228024.

The spelling of 13632705 in words is "thirteen million, six hundred thirty-two thousand, seven hundred five".