67385945 has 16 divisors (see below), whose sum is σ = 90268992. Its totient is φ = 47866560.

The previous prime is 67385939. The next prime is 67385947. The reversal of 67385945 is 54958376.

It is not a de Polignac number, because 67385945 - 2⁶ = 67385881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67385945.

It is not an unprimeable number, because it can be changed into a prime (67385947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11882 + ... + 16611.

It is an arithmetic number, because the mean of its divisors is an integer number (5641812).

Almost surely, 2^67385945 is an apocalyptic number.

It is an amenable number.

67385945 is a deficient number, since it is larger than the sum of its proper divisors (22883047).

67385945 is a wasteful number, since it uses less digits than its factorization.

67385945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28552.

The product of its digits is 907200, while the sum is 47.

The square root of 67385945 is about 8208.8942617139. The cubic root of 67385945 is about 406.9331851273.

The spelling of 67385945 in words is "sixty-seven million, three hundred eighty-five thousand, nine hundred forty-five".