67936389 has 8 divisors (see below), whose sum is σ = 91234080. Its totient is φ = 44964816.

The previous prime is 67936373. The next prime is 67936397. The reversal of 67936389 is 98363976.

It is a happy number.

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

It is not a de Polignac number, because 67936389 - 2⁴ = 67936373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67936399) 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, 81042 + ... + 81875.

It is an arithmetic number, because the mean of its divisors is an integer number (11404260).

Almost surely, 2^67936389 is an apocalyptic number.

It is an amenable number.

67936389 is a deficient number, since it is larger than the sum of its proper divisors (23297691).

67936389 is a wasteful number, since it uses less digits than its factorization.

67936389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163059.

The product of its digits is 1469664, while the sum is 51.

The square root of 67936389 is about 8242.3533653927. The cubic root of 67936389 is about 408.0381968757.

The spelling of 67936389 in words is "sixty-seven million, nine hundred thirty-six thousand, three hundred eighty-nine".