84971320 has 32 divisors (see below), whose sum is σ = 218498400. Its totient is φ = 29132928.

The previous prime is 84971317. The next prime is 84971323. The reversal of 84971320 is 2317948.

It is an interprime number because it is at equal distance from previous prime (84971317) and next prime (84971323).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84971323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151455 + ... + 152014.

It is an arithmetic number, because the mean of its divisors is an integer number (6828075).

Almost surely, 2^84971320 is an apocalyptic number.

It is an amenable number.

84971320 is an abundant number, since it is smaller than the sum of its proper divisors (133527080).

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

84971320 is a wasteful number, since it uses less digits than its factorization.

84971320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303487 (or 303483 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 84971320 is about 9217.9889346864. The cubic root of 84971320 is about 439.6335102510.

The spelling of 84971320 in words is "eighty-four million, nine hundred seventy-one thousand, three hundred twenty".