13035987 has 6 divisors (see below), whose sum is σ = 18829772. Its totient is φ = 8690652.

The previous prime is 13035973. The next prime is 13036007. The reversal of 13035987 is 78953031.

It is not a de Polignac number, because 13035987 - 2⁷ = 13035859 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13035907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 724213 + ... + 724230.

Almost surely, 2^13035987 is an apocalyptic number.

13035987 is a deficient number, since it is larger than the sum of its proper divisors (5793785).

13035987 is a wasteful number, since it uses less digits than its factorization.

13035987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448449 (or 1448446 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 13035987 is about 3610.5383255132. The cubic root of 13035987 is about 235.3502367747.

The spelling of 13035987 in words is "thirteen million, thirty-five thousand, nine hundred eighty-seven".