26497971 has 6 divisors (see below), whose sum is σ = 38274860. Its totient is φ = 17665308.

The previous prime is 26497969. The next prime is 26497993. The reversal of 26497971 is 17979462.

It is not a de Polignac number, because 26497971 - 2¹ = 26497969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26497921) 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, 1472101 + ... + 1472118.

Almost surely, 2^26497971 is an apocalyptic number.

26497971 is a deficient number, since it is larger than the sum of its proper divisors (11776889).

26497971 is a wasteful number, since it uses less digits than its factorization.

26497971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944225 (or 2944222 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 26497971 is about 5147.6179928196. The cubic root of 26497971 is about 298.1289886470.

The spelling of 26497971 in words is "twenty-six million, four hundred ninety-seven thousand, nine hundred seventy-one".