67643942 has 16 divisors (see below), whose sum is σ = 102948192. Its totient is φ = 33331200.

The previous prime is 67643899. The next prime is 67643959. The reversal of 67643942 is 24934676.

It is a self number, because there is not a number n which added to its sum of digits gives 67643942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51263 + ... + 52565.

It is an arithmetic number, because the mean of its divisors is an integer number (6434262).

Almost surely, 2^67643942 is an apocalyptic number.

67643942 is a deficient number, since it is larger than the sum of its proper divisors (35304250).

67643942 is a wasteful number, since it uses less digits than its factorization.

67643942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663.

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

The square root of 67643942 is about 8224.5937285680. The cubic root of 67643942 is about 407.4518582645.

The spelling of 67643942 in words is "sixty-seven million, six hundred forty-three thousand, nine hundred forty-two".