67089071 has 4 divisors (see below), whose sum is σ = 76673232. Its totient is φ = 57504912.

The previous prime is 67089059. The next prime is 67089097. The reversal of 67089071 is 17098076.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 67089071 - 2¹⁸ = 66826927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67089271) 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, 4792070 + ... + 4792083.

It is an arithmetic number, because the mean of its divisors is an integer number (19168308).

Almost surely, 2^67089071 is an apocalyptic number.

67089071 is a deficient number, since it is larger than the sum of its proper divisors (9584161).

67089071 is an equidigital number, since it uses as much as digits as its factorization.

67089071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9584160.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 67089071 is about 8190.7918420626. The cubic root of 67089071 is about 406.3347135054.

The spelling of 67089071 in words is "sixty-seven million, eighty-nine thousand, seventy-one".