26898491 has 4 divisors (see below), whose sum is σ = 27026184. Its totient is φ = 26770800.

The previous prime is 26898479. The next prime is 26898503. The reversal of 26898491 is 19489862.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (26898479) and next prime (26898503).

It is a cyclic number.

It is not a de Polignac number, because 26898491 - 2⁶ = 26898427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26898461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63530 + ... + 63951.

It is an arithmetic number, because the mean of its divisors is an integer number (6756546).

Almost surely, 2^26898491 is an apocalyptic number.

26898491 is a deficient number, since it is larger than the sum of its proper divisors (127693).

26898491 is a wasteful number, since it uses less digits than its factorization.

26898491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127692.

The product of its digits is 248832, while the sum is 47.

The square root of 26898491 is about 5186.3755166783. The cubic root of 26898491 is about 299.6235686030.

The spelling of 26898491 in words is "twenty-six million, eight hundred ninety-eight thousand, four hundred ninety-one".