26420823 has 40 divisors (see below), whose sum is σ = 46388496. Its totient is φ = 14774400.

The previous prime is 26420803. The next prime is 26420857. The reversal of 26420823 is 32802462.

It is not a de Polignac number, because 26420823 - 2⁶ = 26420759 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26420803) 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 39 ways as a sum of consecutive naturals, for example, 10443 + ... + 12723.

Almost surely, 2^26420823 is an apocalyptic number.

26420823 is a deficient number, since it is larger than the sum of its proper divisors (19967673).

26420823 is a wasteful number, since it uses less digits than its factorization.

26420823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317 (or 2308 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 26420823 is about 5140.1189674948. The cubic root of 26420823 is about 297.8393763757.

The spelling of 26420823 in words is "twenty-six million, four hundred twenty thousand, eight hundred twenty-three".