26612091 has 16 divisors (see below), whose sum is σ = 43009920. Its totient is φ = 16128360.

The previous prime is 26612087. The next prime is 26612119. The reversal of 26612091 is 19021662.

It is not a de Polignac number, because 26612091 - 2² = 26612087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (26612491) 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 15 ways as a sum of consecutive naturals, for example, 44505 + ... + 45098.

It is an arithmetic number, because the mean of its divisors is an integer number (2688120).

Almost surely, 2^26612091 is an apocalyptic number.

26612091 is a deficient number, since it is larger than the sum of its proper divisors (16397829).

26612091 is a wasteful number, since it uses less digits than its factorization.

26612091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89623 (or 89617 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 26612091 is about 5158.6908222920. The cubic root of 26612091 is about 298.5563641954.

The spelling of 26612091 in words is "twenty-six million, six hundred twelve thousand, ninety-one".