13671976 has 8 divisors (see below), whose sum is σ = 25634970. Its totient is φ = 6835984.

The previous prime is 13671967. The next prime is 13671989. The reversal of 13671976 is 67917631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10692900 + 2979076 = 3270^2 + 1726^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 854491 + ... + 854506.

Almost surely, 2^13671976 is an apocalyptic number.

It is an amenable number.

13671976 is a deficient number, since it is larger than the sum of its proper divisors (11962994).

13671976 is a wasteful number, since it uses less digits than its factorization.

13671976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709003 (or 1708999 counting only the distinct ones).

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

The square root of 13671976 is about 3697.5635221048. The cubic root of 13671976 is about 239.1169866635.

The spelling of 13671976 in words is "thirteen million, six hundred seventy-one thousand, nine hundred seventy-six".