84068147 has 4 divisors (see below), whose sum is σ = 84490800. Its totient is φ = 83645496.

The previous prime is 84068143. The next prime is 84068161. The reversal of 84068147 is 74186048.

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

It is a cyclic number.

It is not a de Polignac number, because 84068147 - 2² = 84068143 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 84068147.

It is not an unprimeable number, because it can be changed into a prime (84068143) 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, 211028 + ... + 211425.

It is an arithmetic number, because the mean of its divisors is an integer number (21122700).

Almost surely, 2^84068147 is an apocalyptic number.

84068147 is a deficient number, since it is larger than the sum of its proper divisors (422653).

84068147 is a wasteful number, since it uses less digits than its factorization.

84068147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422652.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 84068147 is about 9168.8683598359. The cubic root of 84068147 is about 438.0703149486.

The spelling of 84068147 in words is "eighty-four million, sixty-eight thousand, one hundred forty-seven".