84289471 has 8 divisors (see below), whose sum is σ = 98380800. Its totient is φ = 70710648.

The previous prime is 84289459. The next prime is 84289477. The reversal of 84289471 is 17498248.

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

It is a cyclic number.

It is not a de Polignac number, because 84289471 - 2⁷ = 84289343 is a prime.

It is a super-3 number, since 3×84289471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84289477) 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, 127771 + ... + 128428.

It is an arithmetic number, because the mean of its divisors is an integer number (12297600).

Almost surely, 2^84289471 is an apocalyptic number.

84289471 is a deficient number, since it is larger than the sum of its proper divisors (14091329).

84289471 is a wasteful number, since it uses less digits than its factorization.

84289471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256253.

The product of its digits is 129024, while the sum is 43.

The square root of 84289471 is about 9180.9297459462. The cubic root of 84289471 is about 438.4544101460.

The spelling of 84289471 in words is "eighty-four million, two hundred eighty-nine thousand, four hundred seventy-one".