10687645 has 8 divisors (see below), whose sum is σ = 13579704. Its totient is φ = 8047104.

The previous prime is 10687643. The next prime is 10687657. The reversal of 10687645 is 54678601.

It can be written as a sum of positive squares in 4 ways, for example, as 3059001 + 7628644 = 1749^2 + 2762^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10687645 - 2¹ = 10687643 is a prime.

It is a super-2 number, since 2×10687645² = 228451511292050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10687643) 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 in 7 ways as a sum of consecutive naturals, for example, 62784 + ... + 62953.

It is an arithmetic number, because the mean of its divisors is an integer number (1697463).

Almost surely, 2^10687645 is an apocalyptic number.

It is an amenable number.

10687645 is a deficient number, since it is larger than the sum of its proper divisors (2892059).

10687645 is a wasteful number, since it uses less digits than its factorization.

10687645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125759.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 10687645 is about 3269.1963844346. The cubic root of 10687645 is about 220.2726990288.

The spelling of 10687645 in words is "ten million, six hundred eighty-seven thousand, six hundred forty-five".