10261687 has 4 divisors (see below), whose sum is σ = 10290016. Its totient is φ = 10233360.

The previous prime is 10261673. The next prime is 10261697. The reversal of 10261687 is 78616201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78616201 = 277 ⋅283813.

It is a cyclic number.

It is not a de Polignac number, because 10261687 - 2¹⁵ = 10228919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10261627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13614 + ... + 14347.

It is an arithmetic number, because the mean of its divisors is an integer number (2572504).

Almost surely, 2^10261687 is an apocalyptic number.

10261687 is a deficient number, since it is larger than the sum of its proper divisors (28329).

10261687 is an equidigital number, since it uses as much as digits as its factorization.

10261687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28328.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 10261687 is about 3203.3868014962. The cubic root of 10261687 is about 217.3066022070.

Adding to 10261687 its reverse (78616201), we get a palindrome (88877888).

The spelling of 10261687 in words is "ten million, two hundred sixty-one thousand, six hundred eighty-seven".