67713569 has 16 divisors (see below), whose sum is σ = 84602880. Its totient is φ = 52650960.

The previous prime is 67713563. The next prime is 67713571. The reversal of 67713569 is 96531776.

It is a cyclic number.

It is not a de Polignac number, because 67713569 - 2⁴ = 67713553 is a prime.

It is a super-2 number, since 2×67713569² = 9170254853435522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (67713563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65942 + ... + 66960.

It is an arithmetic number, because the mean of its divisors is an integer number (5287680).

Almost surely, 2^67713569 is an apocalyptic number.

It is an amenable number.

67713569 is a deficient number, since it is larger than the sum of its proper divisors (16889311).

67713569 is a wasteful number, since it uses less digits than its factorization.

67713569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900.

The product of its digits is 238140, while the sum is 44.

The square root of 67713569 is about 8228.8254933496. The cubic root of 67713569 is about 407.5916092483.

The spelling of 67713569 in words is "sixty-seven million, seven hundred thirteen thousand, five hundred sixty-nine".