26501797 has 24 divisors (see below), whose sum is σ = 32011200. Its totient is φ = 21865536.

The previous prime is 26501791. The next prime is 26501801. The reversal of 26501797 is 79710562.

It is not a de Polignac number, because 26501797 - 2⁷ = 26501669 is a prime.

It is a Duffinian number.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26501791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257248 + ... + 257350.

It is an arithmetic number, because the mean of its divisors is an integer number (1333800).

Almost surely, 2^26501797 is an apocalyptic number.

It is an amenable number.

26501797 is a deficient number, since it is larger than the sum of its proper divisors (5509403).

26501797 is a wasteful number, since it uses less digits than its factorization.

26501797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 26501797 is about 5147.9896076041. The cubic root of 26501797 is about 298.1433367470.

The spelling of 26501797 in words is "twenty-six million, five hundred one thousand, seven hundred ninety-seven".