26661794 has 4 divisors (see below), whose sum is σ = 39992694. Its totient is φ = 13330896.

The previous prime is 26661781. The next prime is 26661799. The reversal of 26661794 is 49716662.

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

It can be written as a sum of positive squares in only one way, i.e., 20839225 + 5822569 = 4565^2 + 2413^2 .

It is not an unprimeable number, because it can be changed into a prime (26661799) 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 as a sum of consecutive naturals, namely, 6665447 + ... + 6665450.

Almost surely, 2^26661794 is an apocalyptic number.

26661794 is a deficient number, since it is larger than the sum of its proper divisors (13330900).

26661794 is a wasteful number, since it uses less digits than its factorization.

26661794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13330899.

The product of its digits is 108864, while the sum is 41.

The square root of 26661794 is about 5163.5059794678. The cubic root of 26661794 is about 298.7421183357.

The spelling of 26661794 in words is "twenty-six million, six hundred sixty-one thousand, seven hundred ninety-four".