76821232 has 40 divisors (see below), whose sum is σ = 163047600. Its totient is φ = 34900992.

The previous prime is 76821223. The next prime is 76821247. The reversal of 76821232 is 23212867.

It is a junction number, because it is equal to n+sod(n) for n = 76821194 and 76821203.

It is a congruent number.

It is an unprimeable number.

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, 3019 + ... + 12757.

It is an arithmetic number, because the mean of its divisors is an integer number (4076190).

Almost surely, 2^76821232 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 76821232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81523800).

76821232 is an abundant number, since it is smaller than the sum of its proper divisors (86226368).

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

76821232 is a wasteful number, since it uses less digits than its factorization.

76821232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9793 (or 9787 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 76821232 is about 8764.7722160932. The cubic root of 76821232 is about 425.1025948395.

The spelling of 76821232 in words is "seventy-six million, eight hundred twenty-one thousand, two hundred thirty-two".