13487386 has 12 divisors (see below), whose sum is σ = 22237866. Its totient is φ = 6130520.

The previous prime is 13487381. The next prime is 13487389. The reversal of 13487386 is 68378431.

It can be written as a sum of positive squares in only one way, i.e., 8886361 + 4601025 = 2981^2 + 2145^2 .

It is a super-2 number, since 2×13487386² = 363819162225992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13487381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27625 + ... + 28108.

Almost surely, 2^13487386 is an apocalyptic number.

13487386 is a deficient number, since it is larger than the sum of its proper divisors (8750480).

13487386 is a wasteful number, since it uses less digits than its factorization.

13487386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55757 (or 55746 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 13487386 is about 3672.5176650358. The cubic root of 13487386 is about 238.0359736598.

The spelling of 13487386 in words is "thirteen million, four hundred eighty-seven thousand, three hundred eighty-six".