26098861 has 4 divisors (see below), whose sum is σ = 26352352. Its totient is φ = 25845372.

The previous prime is 26098841. The next prime is 26098867. The reversal of 26098861 is 16889062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26098861 - 2¹¹ = 26096813 is a prime.

It is a super-3 number, since 3×26098861³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26098867) 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, 126591 + ... + 126796.

It is an arithmetic number, because the mean of its divisors is an integer number (6588088).

Almost surely, 2^26098861 is an apocalyptic number.

It is an amenable number.

26098861 is a deficient number, since it is larger than the sum of its proper divisors (253491).

26098861 is a wasteful number, since it uses less digits than its factorization.

26098861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253490.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 26098861 is about 5108.7044345900. The cubic root of 26098861 is about 296.6246131247.

The spelling of 26098861 in words is "twenty-six million, ninety-eight thousand, eight hundred sixty-one".