26646641 has 8 divisors (see below), whose sum is σ = 31075200. Its totient is φ = 22839684.

The previous prime is 26646611. The next prime is 26646661. The reversal of 26646641 is 14664662.

It is not a de Polignac number, because 26646641 - 2¹⁴ = 26630257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26646611) 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, 38501 + ... + 39186.

It is an arithmetic number, because the mean of its divisors is an integer number (3884400).

Almost surely, 2^26646641 is an apocalyptic number.

It is an amenable number.

26646641 is a deficient number, since it is larger than the sum of its proper divisors (4428559).

26646641 is an frugal number, since it uses more digits than its factorization.

26646641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77708 (or 77694 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 26646641 is about 5162.0384539443. The cubic root of 26646641 is about 298.6855117775.

The spelling of 26646641 in words is "twenty-six million, six hundred forty-six thousand, six hundred forty-one".