26651939 has 2 divisors, whose sum is σ = 26651940. Its totient is φ = 26651938.

The previous prime is 26651929. The next prime is 26651983. The reversal of 26651939 is 93915662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26651939 - 2⁴ = 26651923 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 26651896 and 26651905.

It is not a weakly prime, because it can be changed into another prime (26651929) 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, 13325969 + 13325970.

It is an arithmetic number, because the mean of its divisors is an integer number (13325970).

Almost surely, 2^26651939 is an apocalyptic number.

26651939 is a deficient number, since it is larger than the sum of its proper divisors (1).

26651939 is an equidigital number, since it uses as much as digits as its factorization.

26651939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 41.

The square root of 26651939 is about 5162.5515978051. The cubic root of 26651939 is about 298.7053057792.

The spelling of 26651939 in words is "twenty-six million, six hundred fifty-one thousand, nine hundred thirty-nine".