13677631 has 4 divisors (see below), whose sum is σ = 14921064. Its totient is φ = 12434200.

The previous prime is 13677623. The next prime is 13677637.

It is a happy number.

13677631 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13677631 - 2³ = 13677623 is a prime.

It is a super-2 number, since 2×13677631² = 374155179544322, 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 (13677637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621700 + ... + 621721.

It is an arithmetic number, because the mean of its divisors is an integer number (3730266).

Almost surely, 2^13677631 is an apocalyptic number.

13677631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13677631 is a deficient number, since it is larger than the sum of its proper divisors (1243433).

13677631 is a wasteful number, since it uses less digits than its factorization.

13677631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243432.

The product of its digits is 15876, while the sum is 34.

The square root of 13677631 is about 3698.3281357933. The cubic root of 13677631 is about 239.1499499594.

It can be divided in two parts, 1367 and 7631, that added together give a palindrome (8998).

The spelling of 13677631 in words is "thirteen million, six hundred seventy-seven thousand, six hundred thirty-one".