26530861 has 8 divisors (see below), whose sum is σ = 30774080. Its totient is φ = 22400928.

The previous prime is 26530849. The next prime is 26530873. The reversal of 26530861 is 16803562.

It is an interprime number because it is at equal distance from previous prime (26530849) and next prime (26530873).

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 26530861 - 2⁷ = 26530733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26530831) 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, 27816 + ... + 28753.

It is an arithmetic number, because the mean of its divisors is an integer number (3846760).

Almost surely, 2^26530861 is an apocalyptic number.

It is an amenable number.

26530861 is a deficient number, since it is larger than the sum of its proper divisors (4243219).

26530861 is an equidigital number, since it uses as much as digits as its factorization.

26530861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56643.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 26530861 is about 5150.8116836087. The cubic root of 26530861 is about 298.2522862421.

The spelling of 26530861 in words is "twenty-six million, five hundred thirty thousand, eight hundred sixty-one".