67842971 has 8 divisors (see below), whose sum is σ = 82095840. Its totient is φ = 54730368.

The previous prime is 67842967. The next prime is 67842989. The reversal of 67842971 is 17924876.

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

It is not a de Polignac number, because 67842971 - 2² = 67842967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67842371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284936 + ... + 285173.

It is an arithmetic number, because the mean of its divisors is an integer number (10261980).

Almost surely, 2^67842971 is an apocalyptic number.

67842971 is a deficient number, since it is larger than the sum of its proper divisors (14252869).

67842971 is a wasteful number, since it uses less digits than its factorization.

67842971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570133.

The product of its digits is 169344, while the sum is 44.

The square root of 67842971 is about 8236.6844664586. The cubic root of 67842971 is about 407.8510826353.

The spelling of 67842971 in words is "sixty-seven million, eight hundred forty-two thousand, nine hundred seventy-one".