10664971 has 4 divisors (see below), whose sum is σ = 10671912. Its totient is φ = 10658032.

The previous prime is 10664963. The next prime is 10664977. The reversal of 10664971 is 17946601.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 17946601 = 23 ⋅780287.

It is a cyclic number.

It is not a de Polignac number, because 10664971 - 2³ = 10664963 is a prime.

It is a super-2 number, since 2×10664971² = 227483212861682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10664977) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25 + ... + 4618.

It is an arithmetic number, because the mean of its divisors is an integer number (2667978).

Almost surely, 2^10664971 is an apocalyptic number.

10664971 is a deficient number, since it is larger than the sum of its proper divisors (6941).

10664971 is an equidigital number, since it uses as much as digits as its factorization.

10664971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6940.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 10664971 is about 3265.7267185115. The cubic root of 10664971 is about 220.1168181249.

The spelling of 10664971 in words is "ten million, six hundred sixty-four thousand, nine hundred seventy-one".