84731976 has 192 divisors, whose sum is σ = 277056000. Its totient is φ = 23369472.

The previous prime is 84731957. The next prime is 84731981. The reversal of 84731976 is 67913748.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1160676 + ... + 1160748.

It is an arithmetic number, because the mean of its divisors is an integer number (1443000).

Almost surely, 2^84731976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84731976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138528000).

84731976 is an abundant number, since it is smaller than the sum of its proper divisors (192324024).

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

84731976 is a wasteful number, since it uses less digits than its factorization.

84731976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 132 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 84731976 is about 9204.9973384027. The cubic root of 84731976 is about 439.2203410608.

It can be divided in two parts, 847 and 31976, that added together give a palindrome (32823).

The spelling of 84731976 in words is "eighty-four million, seven hundred thirty-one thousand, nine hundred seventy-six".