26930569 has 2 divisors, whose sum is σ = 26930570. Its totient is φ = 26930568.

The previous prime is 26930557. The next prime is 26930591. The reversal of 26930569 is 96503962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26904969 + 25600 = 5187^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 26930569 - 2²³ = 18541961 is a prime.

It is a super-2 number, since 2×26930569² = 1450511093327522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26930549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13465284 + 13465285.

It is an arithmetic number, because the mean of its divisors is an integer number (13465285).

Almost surely, 2^26930569 is an apocalyptic number.

It is an amenable number.

26930569 is a deficient number, since it is larger than the sum of its proper divisors (1).

26930569 is an equidigital number, since it uses as much as digits as its factorization.

26930569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 26930569 is about 5189.4671210058. The cubic root of 26930569 is about 299.7426274091.

The spelling of 26930569 in words is "twenty-six million, nine hundred thirty thousand, five hundred sixty-nine".