10687549 has 2 divisors, whose sum is σ = 10687550. Its totient is φ = 10687548.

The previous prime is 10687493. The next prime is 10687601. The reversal of 10687549 is 94578601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6340324 + 4347225 = 2518^2 + 2085^2 .

It is a cyclic number.

It is not a de Polignac number, because 10687549 - 2⁹ = 10687037 is a prime.

It is a super-2 number, since 2×10687549² = 228447407254802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10687049) by changing a digit.

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 as a sum of consecutive naturals, namely, 5343774 + 5343775.

It is an arithmetic number, because the mean of its divisors is an integer number (5343775).

Almost surely, 2^10687549 is an apocalyptic number.

It is an amenable number.

10687549 is a deficient number, since it is larger than the sum of its proper divisors (1).

10687549 is an equidigital number, since it uses as much as digits as its factorization.

10687549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 10687549 is about 3269.1817018942. The cubic root of 10687549 is about 220.2720395058.

It can be divided in two parts, 10687 and 549, that added together give a square (11236 = 106²).

The spelling of 10687549 in words is "ten million, six hundred eighty-seven thousand, five hundred forty-nine".