10687513 has 4 divisors (see below), whose sum is σ = 10695888. Its totient is φ = 10679140.

The previous prime is 10687493. The next prime is 10687549. The reversal of 10687513 is 31578601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10687513 - 2¹³ = 10679321 is a prime.

It is a super-2 number, since 2×10687513² = 228445868250338, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10687013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1831 + ... + 4972.

It is an arithmetic number, because the mean of its divisors is an integer number (2673972).

It is a vampire number, since it can be written as 1571 ⋅ 6803 (with its own digits).

Almost surely, 2^10687513 is an apocalyptic number.

It is an amenable number.

10687513 is a deficient number, since it is larger than the sum of its proper divisors (8375).

10687513 is an equidigital number, since it uses as much as digits as its factorization.

10687513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8374.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 10687513 is about 3269.1761959246. The cubic root of 10687513 is about 220.2717921837.

The spelling of 10687513 in words is "ten million, six hundred eighty-seven thousand, five hundred thirteen".