26172423 has 16 divisors (see below), whose sum is σ = 39677440. Its totient is φ = 17041752.

The previous prime is 26172409. The next prime is 26172437. The reversal of 26172423 is 32427162.

26172423 is a `hidden beast` number, since 2 + 617 + 2 + 42 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (26172409) and next prime (26172437).

It is not a de Polignac number, because 26172423 - 2¹⁰ = 26171399 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26172493) 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 15 ways as a sum of consecutive naturals, for example, 10111 + ... + 12432.

It is an arithmetic number, because the mean of its divisors is an integer number (2479840).

Almost surely, 2^26172423 is an apocalyptic number.

26172423 is a deficient number, since it is larger than the sum of its proper divisors (13505017).

26172423 is a wasteful number, since it uses less digits than its factorization.

26172423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22595 (or 22589 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 26172423 is about 5115.8990412243. The cubic root of 26172423 is about 296.9030394643.

Adding to 26172423 its reverse (32427162), we get a palindrome (58599585).

The spelling of 26172423 in words is "twenty-six million, one hundred seventy-two thousand, four hundred twenty-three".