26697798 has 24 divisors (see below), whose sum is σ = 58032936. Its totient is φ = 8870400.

The previous prime is 26697791. The next prime is 26697799. The reversal of 26697798 is 89779662.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26697791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3718 + ... + 8198.

It is an arithmetic number, because the mean of its divisors is an integer number (2418039).

Almost surely, 2^26697798 is an apocalyptic number.

26697798 is an abundant number, since it is smaller than the sum of its proper divisors (31335138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26697798 is a wasteful number, since it uses less digits than its factorization.

26697798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4820 (or 4817 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 26697798 is about 5166.9911941090. The cubic root of 26697798 is about 298.8765313123.

It can be divided in two parts, 26697 and 798, that added together give a triangular number (27495 = T₂₃₄).

The spelling of 26697798 in words is "twenty-six million, six hundred ninety-seven thousand, seven hundred ninety-eight".