10687520 has 24 divisors (see below), whose sum is σ = 25249644. Its totient is φ = 4274944.

The previous prime is 10687493. The next prime is 10687549. The reversal of 10687520 is 2578601.

It can be written as a sum of positive squares in 2 ways, for example, as 10163344 + 524176 = 3188^2 + 724^2 .

It is a super-2 number, since 2×10687520² = 228446167500800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33239 + ... + 33558.

Almost surely, 2^10687520 is an apocalyptic number.

10687520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10687520 is an abundant number, since it is smaller than the sum of its proper divisors (14562124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10687520 is an equidigital number, since it uses as much as digits as its factorization.

10687520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66812 (or 66804 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 10687520 is about 3269.1772665305. The cubic root of 10687520 is about 220.2718402741.

The spelling of 10687520 in words is "ten million, six hundred eighty-seven thousand, five hundred twenty".