84671151 has 4 divisors (see below), whose sum is σ = 112894872. Its totient is φ = 56447432.

The previous prime is 84671141. The next prime is 84671159. The reversal of 84671151 is 15117648.

It is a happy number.

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 84671151 - 2¹¹ = 84669103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84671159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14111856 + ... + 14111861.

It is an arithmetic number, because the mean of its divisors is an integer number (28223718).

Almost surely, 2^84671151 is an apocalyptic number.

84671151 is a deficient number, since it is larger than the sum of its proper divisors (28223721).

84671151 is a wasteful number, since it uses less digits than its factorization.

84671151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28223720.

The product of its digits is 6720, while the sum is 33.

The square root of 84671151 is about 9201.6928333867. The cubic root of 84671151 is about 439.1152175341.

Adding to 84671151 its reverse (15117648), we get a palindrome (99788799).

The spelling of 84671151 in words is "eighty-four million, six hundred seventy-one thousand, one hundred fifty-one".