26902081 has 6 divisors (see below), whose sum is σ = 28392882. Its totient is φ = 25485840.

The previous prime is 26902069. The next prime is 26902091. The reversal of 26902081 is 18020962.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24591681 + 2310400 = 4959^2 + 1520^2 .

It is not a de Polignac number, because 26902081 - 2⁹ = 26901569 is a prime.

It is a super-2 number, since 2×26902081² = 1447443924261122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26902091) 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 5 ways as a sum of consecutive naturals, for example, 36900 + ... + 37621.

It is an arithmetic number, because the mean of its divisors is an integer number (4732147).

Almost surely, 2^26902081 is an apocalyptic number.

It is an amenable number.

26902081 is a deficient number, since it is larger than the sum of its proper divisors (1490801).

26902081 is an equidigital number, since it uses as much as digits as its factorization.

26902081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74559 (or 74540 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 26902081 is about 5186.7216042506. The cubic root of 26902081 is about 299.6368977368.

The spelling of 26902081 in words is "twenty-six million, nine hundred two thousand, eighty-one".