10663631 has 4 divisors (see below), whose sum is σ = 11633064. Its totient is φ = 9694200.

The previous prime is 10663603. The next prime is 10663643. The reversal of 10663631 is 13636601.

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 10663631 - 2¹⁰ = 10662607 is a prime.

It is a super-2 number, since 2×10663631² = 227426052208322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10663631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10663661) 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, 484700 + ... + 484721.

It is an arithmetic number, because the mean of its divisors is an integer number (2908266).

Almost surely, 2^10663631 is an apocalyptic number.

10663631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10663631 is a deficient number, since it is larger than the sum of its proper divisors (969433).

10663631 is an equidigital number, since it uses as much as digits as its factorization.

10663631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969432.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 10663631 is about 3265.5215509930. The cubic root of 10663631 is about 220.1075988815.

The spelling of 10663631 in words is "ten million, six hundred sixty-three thousand, six hundred thirty-one".