26946891 has 16 divisors (see below), whose sum is σ = 40336800. Its totient is φ = 17777664.

The previous prime is 26946859. The next prime is 26946911. The reversal of 26946891 is 19864962.

It is a happy number.

It is not a de Polignac number, because 26946891 - 2⁵ = 26946859 is a prime.

It is a super-2 number, since 2×26946891² = 1452269869131762, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (26946691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2526 + ... + 7763.

It is an arithmetic number, because the mean of its divisors is an integer number (2521050).

Almost surely, 2^26946891 is an apocalyptic number.

26946891 is a deficient number, since it is larger than the sum of its proper divisors (13389909).

26946891 is a wasteful number, since it uses less digits than its factorization.

26946891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10395 (or 10389 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 26946891 is about 5191.0394912773. The cubic root of 26946891 is about 299.8031708892.

The spelling of 26946891 in words is "twenty-six million, nine hundred forty-six thousand, eight hundred ninety-one".