10664487 has 8 divisors (see below), whose sum is σ = 15799280. Its totient is φ = 7109640.

The previous prime is 10664477. The next prime is 10664503. The reversal of 10664487 is 78446601.

10664487 is a `hidden beast` number, since 1 + 0 + 6 + 644 + 8 + 7 = 666.

10664487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10664487 - 2⁷ = 10664359 is a prime.

It is a super-2 number, since 2×10664487² = 227462565946338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10664477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197464 + ... + 197517.

It is an arithmetic number, because the mean of its divisors is an integer number (1974910).

Almost surely, 2^10664487 is an apocalyptic number.

10664487 is a deficient number, since it is larger than the sum of its proper divisors (5134793).

10664487 is an equidigital number, since it uses as much as digits as its factorization.

10664487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394990 (or 394984 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 10664487 is about 3265.6526147158. The cubic root of 10664487 is about 220.1134882783.

The spelling of 10664487 in words is "ten million, six hundred sixty-four thousand, four hundred eighty-seven".