84906071 has 4 divisors (see below), whose sum is σ = 85447032. Its totient is φ = 84365112.

The previous prime is 84906067. The next prime is 84906077. The reversal of 84906071 is 17060948.

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 84906071 - 2² = 84906067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84906077) 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 3 ways as a sum of consecutive naturals, for example, 270245 + ... + 270558.

It is an arithmetic number, because the mean of its divisors is an integer number (21361758).

Almost surely, 2^84906071 is an apocalyptic number.

84906071 is a deficient number, since it is larger than the sum of its proper divisors (540961).

84906071 is a wasteful number, since it uses less digits than its factorization.

84906071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540960.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 84906071 is about 9214.4490339900. The cubic root of 84906071 is about 439.5209507326.

The spelling of 84906071 in words is "eighty-four million, nine hundred six thousand, seventy-one".