67945533 has 8 divisors (see below), whose sum is σ = 90744288. Its totient is φ = 45221904.

The previous prime is 67945517. The next prime is 67945573. The reversal of 67945533 is 33554976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67945533 - 2⁴ = 67945517 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67945573) 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 7 ways as a sum of consecutive naturals, for example, 16635 + ... + 20312.

It is an arithmetic number, because the mean of its divisors is an integer number (11343036).

Almost surely, 2^67945533 is an apocalyptic number.

It is an amenable number.

67945533 is a deficient number, since it is larger than the sum of its proper divisors (22798755).

67945533 is a wasteful number, since it uses less digits than its factorization.

67945533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37563.

The product of its digits is 340200, while the sum is 42.

The square root of 67945533 is about 8242.9080426752. The cubic root of 67945533 is about 408.0565028917.

The spelling of 67945533 in words is "sixty-seven million, nine hundred forty-five thousand, five hundred thirty-three".