67394943 has 72 divisors (see below), whose sum is σ = 127967280. Its totient is φ = 34927200.

The previous prime is 67394903. The next prime is 67394947. The reversal of 67394943 is 34949376.

It is not a de Polignac number, because 67394943 - 2⁶ = 67394879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67394947) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 159873 + ... + 160293.

Almost surely, 2^67394943 is an apocalyptic number.

67394943 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

67394943 is a deficient number, since it is larger than the sum of its proper divisors (60572337).

67394943 is a wasteful number, since it uses less digits than its factorization.

67394943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 442 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 67394943 is about 8209.4423074896. The cubic root of 67394943 is about 406.9512968262.

The spelling of 67394943 in words is "sixty-seven million, three hundred ninety-four thousand, nine hundred forty-three".