10663634 has 4 divisors (see below), whose sum is σ = 15995454. Its totient is φ = 5331816.

The previous prime is 10663603. The next prime is 10663643. The reversal of 10663634 is 43636601.

10663634 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, and also an emirpimes, since its reverse is a distinct semiprime: 43636601 = 251 ⋅173851.

It can be written as a sum of positive squares in only one way, i.e., 8094025 + 2569609 = 2845^2 + 1603^2 .

It is a super-2 number, since 2×10663634² = 227426180171912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10663597 and 10663606.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2665907 + ... + 2665910.

Almost surely, 2^10663634 is an apocalyptic number.

10663634 is a deficient number, since it is larger than the sum of its proper divisors (5331820).

10663634 is an equidigital number, since it uses as much as digits as its factorization.

10663634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5331819.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 10663634 is about 3265.5220103377. The cubic root of 10663634 is about 220.1076195224.

The spelling of 10663634 in words is "ten million, six hundred sixty-three thousand, six hundred thirty-four".