67045393 has 4 divisors (see below), whose sum is σ = 67396608. Its totient is φ = 66694180.

The previous prime is 67045387. The next prime is 67045403. The reversal of 67045393 is 39354076.

67045393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67045393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67045313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175321 + ... + 175702.

It is an arithmetic number, because the mean of its divisors is an integer number (16849152).

Almost surely, 2^67045393 is an apocalyptic number.

It is an amenable number.

67045393 is a deficient number, since it is larger than the sum of its proper divisors (351215).

67045393 is a wasteful number, since it uses less digits than its factorization.

67045393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351214.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 67045393 is about 8188.1251211740. The cubic root of 67045393 is about 406.2465136427.

The spelling of 67045393 in words is "sixty-seven million, forty-five thousand, three hundred ninety-three".