26888149 has 2 divisors, whose sum is σ = 26888150. Its totient is φ = 26888148.

The previous prime is 26888131. The next prime is 26888161. The reversal of 26888149 is 94188862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24059025 + 2829124 = 4905^2 + 1682^2 .

It is a cyclic number.

It is not a de Polignac number, because 26888149 - 2¹⁷ = 26757077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26888099 and 26888108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26888189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13444074 + 13444075.

It is an arithmetic number, because the mean of its divisors is an integer number (13444075).

Almost surely, 2^26888149 is an apocalyptic number.

It is an amenable number.

26888149 is a deficient number, since it is larger than the sum of its proper divisors (1).

26888149 is an equidigital number, since it uses as much as digits as its factorization.

26888149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 46.

The square root of 26888149 is about 5185.3783854218. The cubic root of 26888149 is about 299.5851636708.

The spelling of 26888149 in words is "twenty-six million, eight hundred eighty-eight thousand, one hundred forty-nine".