26997667 has 2 divisors, whose sum is σ = 26997668. Its totient is φ = 26997666.

The previous prime is 26997643. The next prime is 26997671. The reversal of 26997667 is 76679962.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26997667 is a prime.

It is not a weakly prime, because it can be changed into another prime (26997167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13498833 + 13498834.

It is an arithmetic number, because the mean of its divisors is an integer number (13498834).

Almost surely, 2^26997667 is an apocalyptic number.

26997667 is a deficient number, since it is larger than the sum of its proper divisors (1).

26997667 is an equidigital number, since it uses as much as digits as its factorization.

26997667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 52.

The square root of 26997667 is about 5195.9279248273. The cubic root of 26997667 is about 299.9913590104.

The spelling of 26997667 in words is "twenty-six million, nine hundred ninety-seven thousand, six hundred sixty-seven".