26372197 has 2 divisors, whose sum is σ = 26372198. Its totient is φ = 26372196.

The previous prime is 26372153. The next prime is 26372239. The reversal of 26372197 is 79127362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21818241 + 4553956 = 4671^2 + 2134^2 .

It is a cyclic number.

It is not a de Polignac number, because 26372197 - 2¹⁹ = 25847909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26372147) 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 as a sum of consecutive naturals, namely, 13186098 + 13186099.

It is an arithmetic number, because the mean of its divisors is an integer number (13186099).

Almost surely, 2^26372197 is an apocalyptic number.

It is an amenable number.

26372197 is a deficient number, since it is larger than the sum of its proper divisors (1).

26372197 is an equidigital number, since it uses as much as digits as its factorization.

26372197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 37.

The square root of 26372197 is about 5135.3867429825. The cubic root of 26372197 is about 297.6565454384.

It can be divided in two parts, 26372 and 197, that added together give a square (26569 = 163²).

The spelling of 26372197 in words is "twenty-six million, three hundred seventy-two thousand, one hundred ninety-seven".