67397838 has 8 divisors (see below), whose sum is σ = 134795688. Its totient is φ = 22465944.

The previous prime is 67397801. The next prime is 67397839. The reversal of 67397838 is 83879376.

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

67397838 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67397839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5616481 + ... + 5616492.

It is an arithmetic number, because the mean of its divisors is an integer number (16849461).

Almost surely, 2^67397838 is an apocalyptic number.

67397838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

67397838 is a wasteful number, since it uses less digits than its factorization.

67397838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11232978.

The product of its digits is 1524096, while the sum is 51.

The square root of 67397838 is about 8209.6186269522. The cubic root of 67397838 is about 406.9571237082.

The spelling of 67397838 in words is "sixty-seven million, three hundred ninety-seven thousand, eight hundred thirty-eight".