26423647 has 4 divisors (see below), whose sum is σ = 26569816. Its totient is φ = 26277480.

The previous prime is 26423599. The next prime is 26423653. The reversal of 26423647 is 74632462.

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

It is a cyclic number.

It is not a de Polignac number, because 26423647 - 2¹¹ = 26421599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26403647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72813 + ... + 73174.

It is an arithmetic number, because the mean of its divisors is an integer number (6642454).

Almost surely, 2^26423647 is an apocalyptic number.

26423647 is a deficient number, since it is larger than the sum of its proper divisors (146169).

26423647 is a wasteful number, since it uses less digits than its factorization.

26423647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146168.

The product of its digits is 48384, while the sum is 34.

The square root of 26423647 is about 5140.3936619679. The cubic root of 26423647 is about 297.8499875570.

The spelling of 26423647 in words is "twenty-six million, four hundred twenty-three thousand, six hundred forty-seven".