26967421 has 4 divisors (see below), whose sum is σ = 29041852. Its totient is φ = 24892992.

The previous prime is 26967401. The next prime is 26967443. The reversal of 26967421 is 12476962.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16695396 + 10272025 = 4086^2 + 3205^2 .

It is a cyclic number.

It is not a de Polignac number, because 26967421 - 2¹¹ = 26965373 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 (26967401) 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, 1037196 + ... + 1037221.

It is an arithmetic number, because the mean of its divisors is an integer number (7260463).

Almost surely, 2^26967421 is an apocalyptic number.

It is an amenable number.

26967421 is a deficient number, since it is larger than the sum of its proper divisors (2074431).

26967421 is a wasteful number, since it uses less digits than its factorization.

26967421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074430.

The product of its digits is 36288, while the sum is 37.

The square root of 26967421 is about 5193.0165607285. The cubic root of 26967421 is about 299.8792884726.

The spelling of 26967421 in words is "twenty-six million, nine hundred sixty-seven thousand, four hundred twenty-one".