26539097 has 4 divisors (see below), whose sum is σ = 28580580. Its totient is φ = 24497616.

The previous prime is 26539081. The next prime is 26539111. The reversal of 26539097 is 79093562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79093562 = 2 ⋅39546781.

It can be written as a sum of positive squares in 2 ways, for example, as 3345241 + 23193856 = 1829^2 + 4816^2 .

It is not a de Polignac number, because 26539097 - 2⁴ = 26539081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26539897) 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 3 ways as a sum of consecutive naturals, for example, 1020722 + ... + 1020747.

It is an arithmetic number, because the mean of its divisors is an integer number (7145145).

Almost surely, 2^26539097 is an apocalyptic number.

It is an amenable number.

26539097 is a deficient number, since it is larger than the sum of its proper divisors (2041483).

26539097 is a wasteful number, since it uses less digits than its factorization.

26539097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041482.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 26539097 is about 5151.6111072168. The cubic root of 26539097 is about 298.2831452945.

The spelling of 26539097 in words is "twenty-six million, five hundred thirty-nine thousand, ninety-seven".