26986147 has 2 divisors, whose sum is σ = 26986148. Its totient is φ = 26986146.

The previous prime is 26986139. The next prime is 26986181. The reversal of 26986147 is 74168962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26986147 - 2³ = 26986139 is a prime.

It is not a weakly prime, because it can be changed into another prime (26986447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13493073 + 13493074.

It is an arithmetic number, because the mean of its divisors is an integer number (13493074).

Almost surely, 2^26986147 is an apocalyptic number.

26986147 is a deficient number, since it is larger than the sum of its proper divisors (1).

26986147 is an equidigital number, since it uses as much as digits as its factorization.

26986147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 26986147 is about 5194.8192461336. The cubic root of 26986147 is about 299.9486838153.

The spelling of 26986147 in words is "twenty-six million, nine hundred eighty-six thousand, one hundred forty-seven".