26687201 has 2 divisors, whose sum is σ = 26687202. Its totient is φ = 26687200.

The previous prime is 26687179. The next prime is 26687207. The reversal of 26687201 is 10278662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21160000 + 5527201 = 4600^2 + 2351^2 .

It is a cyclic number.

It is not a de Polignac number, because 26687201 - 2¹⁴ = 26670817 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (26687207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13343600 + 13343601.

It is an arithmetic number, because the mean of its divisors is an integer number (13343601).

Almost surely, 2^26687201 is an apocalyptic number.

It is an amenable number.

26687201 is a deficient number, since it is larger than the sum of its proper divisors (1).

26687201 is an equidigital number, since it uses as much as digits as its factorization.

26687201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 26687201 is about 5165.9656406136. The cubic root of 26687201 is about 298.8369823110.

The spelling of 26687201 in words is "twenty-six million, six hundred eighty-seven thousand, two hundred one".