10663491 has 8 divisors (see below), whose sum is σ = 14252560. Its totient is φ = 7091712.

The previous prime is 10663481. The next prime is 10663493. The reversal of 10663491 is 19436601.

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

It is not a de Polignac number, because 10663491 - 2⁵ = 10663459 is a prime.

It is a super-2 number, since 2×10663491² = 227420080614162, which contains 22 as substring.

It is the 3266-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10663493) by changing a digit.

It is a nontrivial repunit in base 3265.

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, 2806 + ... + 5403.

It is an arithmetic number, because the mean of its divisors is an integer number (1781570).

Almost surely, 2^10663491 is an apocalyptic number.

10663491 is a deficient number, since it is larger than the sum of its proper divisors (3589069).

10663491 is an equidigital number, since it uses as much as digits as its factorization.

10663491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8645.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 10663491 is about 3265.5001148369. The cubic root of 10663491 is about 220.1066356324.

The spelling of 10663491 in words is "ten million, six hundred sixty-three thousand, four hundred ninety-one".