26713969 has 2 divisors, whose sum is σ = 26713970. Its totient is φ = 26713968.

The previous prime is 26713957. The next prime is 26713997. The reversal of 26713969 is 96931762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26368225 + 345744 = 5135^2 + 588^2 .

It is a cyclic number.

It is not a de Polignac number, because 26713969 - 2⁹ = 26713457 is a prime.

It is a super-2 number, since 2×26713969² = 1427272279465922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26713949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13356984 + 13356985.

It is an arithmetic number, because the mean of its divisors is an integer number (13356985).

Almost surely, 2^26713969 is an apocalyptic number.

It is an amenable number.

26713969 is a deficient number, since it is larger than the sum of its proper divisors (1).

26713969 is an equidigital number, since it uses as much as digits as its factorization.

26713969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 43.

The square root of 26713969 is about 5168.5557944169. Note that the first 3 decimals coincide. The cubic root of 26713969 is about 298.9368628410.

The spelling of 26713969 in words is "twenty-six million, seven hundred thirteen thousand, nine hundred sixty-nine".