10638895 has 4 divisors (see below), whose sum is σ = 12766680. Its totient is φ = 8511112.

The previous prime is 10638893. The next prime is 10638907. The reversal of 10638895 is 59883601.

It is a happy number.

10638895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10638895 - 2¹ = 10638893 is a prime.

It is a super-2 number, since 2×10638895² = 226372173642050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10638893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063885 + ... + 1063894.

It is an arithmetic number, because the mean of its divisors is an integer number (3191670).

Almost surely, 2^10638895 is an apocalyptic number.

10638895 is a deficient number, since it is larger than the sum of its proper divisors (2127785).

10638895 is an equidigital number, since it uses as much as digits as its factorization.

10638895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127784.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 10638895 is about 3261.7319019196. The cubic root of 10638895 is about 219.9372755067.

The spelling of 10638895 in words is "ten million, six hundred thirty-eight thousand, eight hundred ninety-five".