13507976 has 8 divisors (see below), whose sum is σ = 25327470. Its totient is φ = 6753984.

The previous prime is 13507961. The next prime is 13507987. The reversal of 13507976 is 67970531.

It can be written as a sum of positive squares in only one way, i.e., 10719076 + 2788900 = 3274^2 + 1670^2 .

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

It is an unprimeable number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 844241 + ... + 844256.

Almost surely, 2^13507976 is an apocalyptic number.

It is an amenable number.

13507976 is a deficient number, since it is larger than the sum of its proper divisors (11819494).

13507976 is a wasteful number, since it uses less digits than its factorization.

13507976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688503 (or 1688499 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 13507976 is about 3675.3198500267. The cubic root of 13507976 is about 238.1570415662.

The spelling of 13507976 in words is "thirteen million, five hundred seven thousand, nine hundred seventy-six".