10687444 has 12 divisors (see below), whose sum is σ = 19010068. Its totient is φ = 5256000.

The previous prime is 10687423. The next prime is 10687451. The reversal of 10687444 is 44478601.

It can be written as a sum of positive squares in 2 ways, for example, as 2496400 + 8191044 = 1580^2 + 2862^2 .

It is a super-2 number, since 2×10687444² = 228442918506272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21657 + ... + 22144.

Almost surely, 2^10687444 is an apocalyptic number.

It is an amenable number.

10687444 is a deficient number, since it is larger than the sum of its proper divisors (8322624).

10687444 is a wasteful number, since it uses less digits than its factorization.

10687444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43866 (or 43864 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 10687444 is about 3269.1656427902. The cubic root of 10687444 is about 220.2713181480.

The spelling of 10687444 in words is "ten million, six hundred eighty-seven thousand, four hundred forty-four".