26198461 has 2 divisors, whose sum is σ = 26198462. Its totient is φ = 26198460.

The previous prime is 26198453. The next prime is 26198507. The reversal of 26198461 is 16489162.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14295961 + 11902500 = 3781^2 + 3450^2 .

It is a cyclic number.

It is not a de Polignac number, because 26198461 - 2³ = 26198453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26198461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26198561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13099230 + 13099231.

It is an arithmetic number, because the mean of its divisors is an integer number (13099231).

Almost surely, 2^26198461 is an apocalyptic number.

It is an amenable number.

26198461 is a deficient number, since it is larger than the sum of its proper divisors (1).

26198461 is an equidigital number, since it uses as much as digits as its factorization.

26198461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 26198461 is about 5118.4432203552. The cubic root of 26198461 is about 297.0014662075.

The spelling of 26198461 in words is "twenty-six million, one hundred ninety-eight thousand, four hundred sixty-one".