13780876 has 12 divisors (see below), whose sum is σ = 24512320. Its totient is φ = 6777360.

The previous prime is 13780873. The next prime is 13780903. The reversal of 13780876 is 67808731.

13780876 = T₄₁₃ + T₄₁₄ + ... + T₅₃₄.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13780873) 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 3 ways as a sum of consecutive naturals, for example, 27996 + ... + 28483.

Almost surely, 2^13780876 is an apocalyptic number.

It is an amenable number.

13780876 is a deficient number, since it is larger than the sum of its proper divisors (10731444).

13780876 is a wasteful number, since it uses less digits than its factorization.

13780876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56544 (or 56542 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 13780876 is about 3712.2602279474. The cubic root of 13780876 is about 239.7501798630.

The spelling of 13780876 in words is "thirteen million, seven hundred eighty thousand, eight hundred seventy-six".