67244641 has 2 divisors, whose sum is σ = 67244642. Its totient is φ = 67244640.

The previous prime is 67244627. The next prime is 67244693. The reversal of 67244641 is 14644276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67174416 + 70225 = 8196^2 + 265^2 .

It is a cyclic number.

It is not a de Polignac number, because 67244641 - 2⁵ = 67244609 is a prime.

It is equal to p_3965308 and since 67244641 and 3965308 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 67244597 and 67244606.

It is not a weakly prime, because it can be changed into another prime (67244621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33622320 + 33622321.

It is an arithmetic number, because the mean of its divisors is an integer number (33622321).

Almost surely, 2^67244641 is an apocalyptic number.

It is an amenable number.

67244641 is a deficient number, since it is larger than the sum of its proper divisors (1).

67244641 is an equidigital number, since it uses as much as digits as its factorization.

67244641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 34.

The square root of 67244641 is about 8200.2829829220. The cubic root of 67244641 is about 406.6485484926.

The spelling of 67244641 in words is "sixty-seven million, two hundred forty-four thousand, six hundred forty-one".