26973157 has 2 divisors, whose sum is σ = 26973158. Its totient is φ = 26973156.

The previous prime is 26973139. The next prime is 26973187. The reversal of 26973157 is 75137962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24147396 + 2825761 = 4914^2 + 1681^2 .

It is a cyclic number.

It is not a de Polignac number, because 26973157 - 2⁷ = 26973029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26973127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13486578 + 13486579.

It is an arithmetic number, because the mean of its divisors is an integer number (13486579).

Almost surely, 2^26973157 is an apocalyptic number.

It is an amenable number.

26973157 is a deficient number, since it is larger than the sum of its proper divisors (1).

26973157 is an equidigital number, since it uses as much as digits as its factorization.

26973157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 40.

The square root of 26973157 is about 5193.5688115206. The cubic root of 26973157 is about 299.9005485165.

The spelling of 26973157 in words is "twenty-six million, nine hundred seventy-three thousand, one hundred fifty-seven".