84671140 has 24 divisors (see below), whose sum is σ = 178428600. Its totient is φ = 33750528.

The previous prime is 84671131. The next prime is 84671141. The reversal of 84671140 is 4117648.

It can be written as a sum of positive squares in 4 ways, for example, as 54552996 + 30118144 = 7386^2 + 5488^2 .

It is not an unprimeable number, because it can be changed into a prime (84671141) 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, 1365 + ... + 13084.

It is an arithmetic number, because the mean of its divisors is an integer number (7434525).

Almost surely, 2^84671140 is an apocalyptic number.

It is an amenable number.

84671140 is an abundant number, since it is smaller than the sum of its proper divisors (93757460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84671140 is a wasteful number, since it uses less digits than its factorization.

84671140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14751 (or 14749 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 84671140 is about 9201.6922356706. The cubic root of 84671140 is about 439.1151985183.

Adding to 84671140 its reverse (4117648), we get a palindrome (88788788).

The spelling of 84671140 in words is "eighty-four million, six hundred seventy-one thousand, one hundred forty".