26478427 has 4 divisors (see below), whose sum is σ = 26557336. Its totient is φ = 26399520.

The previous prime is 26478407. The next prime is 26478449. The reversal of 26478427 is 72487462.

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 26478427 - 2¹⁹ = 25954139 is a prime.

It is a super-2 number, since 2×26478427² = 1402214192788658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26478427.

It is not an unprimeable number, because it can be changed into a prime (26478407) 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, 38949 + ... + 39622.

It is an arithmetic number, because the mean of its divisors is an integer number (6639334).

Almost surely, 2^26478427 is an apocalyptic number.

26478427 is a deficient number, since it is larger than the sum of its proper divisors (78909).

26478427 is an equidigital number, since it uses as much as digits as its factorization.

26478427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78908.

The product of its digits is 150528, while the sum is 40.

The square root of 26478427 is about 5145.7192888847. The cubic root of 26478427 is about 298.0556740266.

The spelling of 26478427 in words is "twenty-six million, four hundred seventy-eight thousand, four hundred twenty-seven".