26728767 has 12 divisors (see below), whose sum is σ = 41578264. Its totient is φ = 16448400.

The previous prime is 26728733. The next prime is 26728769. The reversal of 26728767 is 76782762.

It is a happy number.

It is not a de Polignac number, because 26728767 - 2¹² = 26724671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26728769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114109 + ... + 114342.

Almost surely, 2^26728767 is an apocalyptic number.

26728767 is a deficient number, since it is larger than the sum of its proper divisors (14849497).

26728767 is a wasteful number, since it uses less digits than its factorization.

26728767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228470 (or 228467 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 26728767 is about 5169.9871373148. The cubic root of 26728767 is about 298.9920505860.

It can be divided in two parts, 26728 and 767, that added together give a triangular number (27495 = T₂₃₄).

The spelling of 26728767 in words is "twenty-six million, seven hundred twenty-eight thousand, seven hundred sixty-seven".