84271340 has 12 divisors (see below), whose sum is σ = 176969856. Its totient is φ = 33708528.

The previous prime is 84271339. The next prime is 84271351. The reversal of 84271340 is 4317248.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2106764 + ... + 2106803.

It is an arithmetic number, because the mean of its divisors is an integer number (14747488).

Almost surely, 2^84271340 is an apocalyptic number.

It is an amenable number.

84271340 is an abundant number, since it is smaller than the sum of its proper divisors (92698516).

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

84271340 is a wasteful number, since it uses less digits than its factorization.

84271340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213576 (or 4213574 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 84271340 is about 9179.9422656137. The cubic root of 84271340 is about 438.4229701299.

Adding to 84271340 its reverse (4317248), we get a palindrome (88588588).

The spelling of 84271340 in words is "eighty-four million, two hundred seventy-one thousand, three hundred forty".