26064891 has 6 divisors (see below), whose sum is σ = 37649300. Its totient is φ = 17376588.

The previous prime is 26064887. The next prime is 26064917. The reversal of 26064891 is 19846062.

26064891 is a `hidden beast` number, since 2 + 6 + 0 + 648 + 9 + 1 = 666.

It is not a de Polignac number, because 26064891 - 2² = 26064887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26064991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1448041 + ... + 1448058.

Almost surely, 2^26064891 is an apocalyptic number.

26064891 is a deficient number, since it is larger than the sum of its proper divisors (11584409).

26064891 is a wasteful number, since it uses less digits than its factorization.

26064891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896105 (or 2896102 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 26064891 is about 5105.3786343424. The cubic root of 26064891 is about 296.4958627676.

The spelling of 26064891 in words is "twenty-six million, sixty-four thousand, eight hundred ninety-one".