26030861 has 4 divisors (see below), whose sum is σ = 26127900. Its totient is φ = 25933824.

The previous prime is 26030843. The next prime is 26030887. The reversal of 26030861 is 16803062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16803062 = 2 ⋅8401531.

It can be written as a sum of positive squares in 2 ways, for example, as 6405961 + 19624900 = 2531^2 + 4430^2 .

It is a cyclic number.

It is not a de Polignac number, because 26030861 - 2²² = 21836557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26030861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26030821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48116 + ... + 48653.

It is an arithmetic number, because the mean of its divisors is an integer number (6531975).

Almost surely, 2^26030861 is an apocalyptic number.

It is an amenable number.

26030861 is a deficient number, since it is larger than the sum of its proper divisors (97039).

26030861 is an equidigital number, since it uses as much as digits as its factorization.

26030861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97038.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 26030861 is about 5102.0447861617. The cubic root of 26030861 is about 296.3667727922.

The spelling of 26030861 in words is "twenty-six million, thirty thousand, eight hundred sixty-one".