26957929 has 2 divisors, whose sum is σ = 26957930. Its totient is φ = 26957928.

The previous prime is 26957927. The next prime is 26957939. The reversal of 26957929 is 92975962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23814400 + 3143529 = 4880^2 + 1773^2 .

It is a cyclic number.

It is not a de Polignac number, because 26957929 - 2¹ = 26957927 is a prime.

Together with 26957927, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26957921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13478964 + 13478965.

It is an arithmetic number, because the mean of its divisors is an integer number (13478965).

Almost surely, 2^26957929 is an apocalyptic number.

It is an amenable number.

26957929 is a deficient number, since it is larger than the sum of its proper divisors (1).

26957929 is an equidigital number, since it uses as much as digits as its factorization.

26957929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 49.

The square root of 26957929 is about 5192.1025606203. The cubic root of 26957929 is about 299.8441004800.

The spelling of 26957929 in words is "twenty-six million, nine hundred fifty-seven thousand, nine hundred twenty-nine".