67049369 has 2 divisors, whose sum is σ = 67049370. Its totient is φ = 67049368.

The previous prime is 67049357. The next prime is 67049371. The reversal of 67049369 is 96394076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61465600 + 5583769 = 7840^2 + 2363^2 .

It is a cyclic number.

It is not a de Polignac number, because 67049369 - 2²⁰ = 66000793 is a prime.

It is a super-2 number, since 2×67049369² = 8991235766596322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 67049371, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (67042369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33524684 + 33524685.

It is an arithmetic number, because the mean of its divisors is an integer number (33524685).

Almost surely, 2^67049369 is an apocalyptic number.

It is an amenable number.

67049369 is a deficient number, since it is larger than the sum of its proper divisors (1).

67049369 is an equidigital number, since it uses as much as digits as its factorization.

67049369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 67049369 is about 8188.3679081976. The cubic root of 67049369 is about 406.2545440438.

The spelling of 67049369 in words is "sixty-seven million, forty-nine thousand, three hundred sixty-nine".