26422609 has 2 divisors, whose sum is σ = 26422610. Its totient is φ = 26422608.

The previous prime is 26422603. The next prime is 26422621. The reversal of 26422609 is 90622462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25150225 + 1272384 = 5015^2 + 1128^2 .

It is a cyclic number.

It is not a de Polignac number, because 26422609 - 2⁷ = 26422481 is a prime.

It is not a weakly prime, because it can be changed into another prime (26422603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13211304 + 13211305.

It is an arithmetic number, because the mean of its divisors is an integer number (13211305).

Almost surely, 2^26422609 is an apocalyptic number.

It is an amenable number.

26422609 is a deficient number, since it is larger than the sum of its proper divisors (1).

26422609 is an equidigital number, since it uses as much as digits as its factorization.

26422609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 26422609 is about 5140.2926959464. The cubic root of 26422609 is about 297.8460873594.

The spelling of 26422609 in words is "twenty-six million, four hundred twenty-two thousand, six hundred nine".