13677961 has 6 divisors (see below), whose sum is σ = 15034586. Its totient is φ = 12434400.

The previous prime is 13677949. The next prime is 13677971. The reversal of 13677961 is 16977631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12467961 + 1210000 = 3531^2 + 1100^2 .

It is not a de Polignac number, because 13677961 - 2¹¹ = 13675913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13677931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56400 + ... + 56641.

Almost surely, 2^13677961 is an apocalyptic number.

13677961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13677961 is a deficient number, since it is larger than the sum of its proper divisors (1356625).

13677961 is a wasteful number, since it uses less digits than its factorization.

13677961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113063 (or 113052 counting only the distinct ones).

The product of its digits is 47628, while the sum is 40.

The square root of 13677961 is about 3698.3727502782. The cubic root of 13677961 is about 239.1518732663.

The spelling of 13677961 in words is "thirteen million, six hundred seventy-seven thousand, nine hundred sixty-one".