67842147 has 8 divisors (see below), whose sum is σ = 91107520. Its totient is φ = 44902440.

The previous prime is 67842113. The next prime is 67842161. The reversal of 67842147 is 74124876.

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

It is not a de Polignac number, because 67842147 - 2¹² = 67838051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67842547) 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, 80929 + ... + 81762.

It is an arithmetic number, because the mean of its divisors is an integer number (11388440).

Almost surely, 2^67842147 is an apocalyptic number.

67842147 is a deficient number, since it is larger than the sum of its proper divisors (23265373).

67842147 is a wasteful number, since it uses less digits than its factorization.

67842147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162833.

The product of its digits is 75264, while the sum is 39.

The square root of 67842147 is about 8236.6344461801. The cubic root of 67842147 is about 407.8494314171.

The spelling of 67842147 in words is "sixty-seven million, eight hundred forty-two thousand, one hundred forty-seven".