67426943 has 4 divisors (see below), whose sum is σ = 69752040. Its totient is φ = 65101848.

The previous prime is 67426907. The next prime is 67426951. The reversal of 67426943 is 34962476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67426943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67426943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67426243) 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, 1162505 + ... + 1162562.

It is an arithmetic number, because the mean of its divisors is an integer number (17438010).

Almost surely, 2^67426943 is an apocalyptic number.

67426943 is a deficient number, since it is larger than the sum of its proper divisors (2325097).

67426943 is a wasteful number, since it uses less digits than its factorization.

67426943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325096.

The product of its digits is 217728, while the sum is 41.

The square root of 67426943 is about 8211.3910514602. The cubic root of 67426943 is about 407.0156952335.

The spelling of 67426943 in words is "sixty-seven million, four hundred twenty-six thousand, nine hundred forty-three".