84613971 has 16 divisors (see below), whose sum is σ = 122320800. Its totient is φ = 51717120.

The previous prime is 84613961. The next prime is 84614009. The reversal of 84613971 is 17931648.

It is not a de Polignac number, because 84613971 - 2⁵ = 84613939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (84613901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470 + ... + 13091.

It is an arithmetic number, because the mean of its divisors is an integer number (7645050).

Almost surely, 2^84613971 is an apocalyptic number.

84613971 is a deficient number, since it is larger than the sum of its proper divisors (37706829).

84613971 is a wasteful number, since it uses less digits than its factorization.

84613971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14726.

The product of its digits is 36288, while the sum is 39.

The square root of 84613971 is about 9198.5852716600. The cubic root of 84613971 is about 439.0163477221.

The spelling of 84613971 in words is "eighty-four million, six hundred thirteen thousand, nine hundred seventy-one".