67226609 has 2 divisors, whose sum is σ = 67226610. Its totient is φ = 67226608.

The previous prime is 67226603. The next prime is 67226623. The reversal of 67226609 is 90662276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49350625 + 17875984 = 7025^2 + 4228^2 .

It is a cyclic number.

It is not a de Polignac number, because 67226609 - 2⁸ = 67226353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67226603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33613304 + 33613305.

It is an arithmetic number, because the mean of its divisors is an integer number (33613305).

Almost surely, 2^67226609 is an apocalyptic number.

It is an amenable number.

67226609 is a deficient number, since it is larger than the sum of its proper divisors (1).

67226609 is an equidigital number, since it uses as much as digits as its factorization.

67226609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 67226609 is about 8199.1834349525. The cubic root of 67226609 is about 406.6121969358.

It can be divided in two parts, 6722 and 6609, that added together give a palindrome (13331).

The spelling of 67226609 in words is "sixty-seven million, two hundred twenty-six thousand, six hundred nine".