13016986 has 4 divisors (see below), whose sum is σ = 19525482. Its totient is φ = 6508492.

The previous prime is 13016963. The next prime is 13016987. The reversal of 13016986 is 68961031.

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

It can be written as a sum of positive squares in only one way, i.e., 12425625 + 591361 = 3525^2 + 769^2 .

It is not an unprimeable number, because it can be changed into a prime (13016987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3254245 + ... + 3254248.

Almost surely, 2^13016986 is an apocalyptic number.

13016986 is a deficient number, since it is larger than the sum of its proper divisors (6508496).

13016986 is an equidigital number, since it uses as much as digits as its factorization.

13016986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6508495.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 13016986 is about 3607.9060409052. The cubic root of 13016986 is about 235.2358338703.

The spelling of 13016986 in words is "thirteen million, sixteen thousand, nine hundred eighty-six".