67967489 has 4 divisors (see below), whose sum is σ = 68040660. Its totient is φ = 67894320.

The previous prime is 67967467. The next prime is 67967509. The reversal of 67967489 is 98476976.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24671089 + 43296400 = 4967^2 + 6580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67967489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67967089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35174 + ... + 37055.

It is an arithmetic number, because the mean of its divisors is an integer number (17010165).

Almost surely, 2^67967489 is an apocalyptic number.

It is an amenable number.

67967489 is a deficient number, since it is larger than the sum of its proper divisors (73171).

67967489 is an equidigital number, since it uses as much as digits as its factorization.

67967489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73170.

The product of its digits is 4572288, while the sum is 56.

The square root of 67967489 is about 8244.2397466352. The cubic root of 67967489 is about 408.1004514454.

The spelling of 67967489 in words is "sixty-seven million, nine hundred sixty-seven thousand, four hundred eighty-nine".