10686987 has 12 divisors (see below), whose sum is σ = 16249480. Its totient is φ = 6749568.

The previous prime is 10686983. The next prime is 10687007. The reversal of 10686987 is 78968601.

It is a happy number.

It is not a de Polignac number, because 10686987 - 2² = 10686983 is a prime.

It is a super-2 number, since 2×10686987² = 228423382276338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10686983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31078 + ... + 31419.

Almost surely, 2^10686987 is an apocalyptic number.

10686987 is a deficient number, since it is larger than the sum of its proper divisors (5562493).

10686987 is a wasteful number, since it uses less digits than its factorization.

10686987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62522 (or 62519 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 10686987 is about 3269.0957465330. The cubic root of 10686987 is about 220.2681784691.

The spelling of 10686987 in words is "ten million, six hundred eighty-six thousand, nine hundred eighty-seven".