67321064 has 64 divisors (see below), whose sum is σ = 136598400. Its totient is φ = 31046400.

The previous prime is 67321063. The next prime is 67321081. The reversal of 67321064 is 46012376.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (67321063) 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, 948149 + ... + 948219.

It is an arithmetic number, because the mean of its divisors is an integer number (2134350).

Almost surely, 2^67321064 is an apocalyptic number.

It is an amenable number.

67321064 is an abundant number, since it is smaller than the sum of its proper divisors (69277336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67321064 is a wasteful number, since it uses less digits than its factorization.

67321064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 67321064 is about 8204.9414379385. The cubic root of 67321064 is about 406.8025411179.

The spelling of 67321064 in words is "sixty-seven million, three hundred twenty-one thousand, sixty-four".