67385838 has 16 divisors (see below), whose sum is σ = 145138896. Its totient is φ = 20734080.

The previous prime is 67385833. The next prime is 67385849. The reversal of 67385838 is 83858376.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67385831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431883 + ... + 432038.

It is an arithmetic number, because the mean of its divisors is an integer number (9071181).

Almost surely, 2^67385838 is an apocalyptic number.

67385838 is an abundant number, since it is smaller than the sum of its proper divisors (77753058).

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

67385838 is a wasteful number, since it uses less digits than its factorization.

67385838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863939.

The product of its digits is 967680, while the sum is 48.

The square root of 67385838 is about 8208.8877443902. The cubic root of 67385838 is about 406.9329697418.

The spelling of 67385838 in words is "sixty-seven million, three hundred eighty-five thousand, eight hundred thirty-eight".