26664427 has 8 divisors (see below), whose sum is σ = 27871200. Its totient is φ = 25476864.

The previous prime is 26664419. The next prime is 26664431. The reversal of 26664427 is 72446662.

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

It is a cyclic number.

It is not a de Polignac number, because 26664427 - 2³ = 26664419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26664487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1927 + ... + 7552.

It is an arithmetic number, because the mean of its divisors is an integer number (3483900).

Almost surely, 2^26664427 is an apocalyptic number.

26664427 is a deficient number, since it is larger than the sum of its proper divisors (1206773).

26664427 is an equidigital number, since it uses as much as digits as its factorization.

26664427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9605.

The product of its digits is 96768, while the sum is 37.

The square root of 26664427 is about 5163.7609355972. The cubic root of 26664427 is about 298.7519521589.

The spelling of 26664427 in words is "twenty-six million, six hundred sixty-four thousand, four hundred twenty-seven".