67284089 has 16 divisors (see below), whose sum is σ = 71280000. Its totient is φ = 63423360.

The previous prime is 67284047. The next prime is 67284097. The reversal of 67284089 is 98048276.

It is a cyclic number.

It is not a de Polignac number, because 67284089 - 2⁸ = 67283833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67284289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338012 + ... + 338210.

It is an arithmetic number, because the mean of its divisors is an integer number (4455000).

Almost surely, 2^67284089 is an apocalyptic number.

It is an amenable number.

67284089 is a deficient number, since it is larger than the sum of its proper divisors (3995911).

67284089 is a wasteful number, since it uses less digits than its factorization.

67284089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 67284089 is about 8202.6879131173. The cubic root of 67284089 is about 406.7280509178.

The spelling of 67284089 in words is "sixty-seven million, two hundred eighty-four thousand, eighty-nine".