76533644 has 12 divisors (see below), whose sum is σ = 146109768. Its totient is φ = 34788000.

The previous prime is 76533641. The next prime is 76533689. The reversal of 76533644 is 44633567.

It is a junction number, because it is equal to n+sod(n) for n = 76533598 and 76533607.

It is not an unprimeable number, because it can be changed into a prime (76533641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869657 + ... + 869744.

It is an arithmetic number, because the mean of its divisors is an integer number (12175814).

Almost surely, 2^76533644 is an apocalyptic number.

It is an amenable number.

76533644 is a deficient number, since it is larger than the sum of its proper divisors (69576124).

76533644 is a wasteful number, since it uses less digits than its factorization.

76533644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739416 (or 1739414 counting only the distinct ones).

The product of its digits is 181440, while the sum is 38.

The square root of 76533644 is about 8748.3509303182. The cubic root of 76533644 is about 424.5714600774.

It can be divided in two parts, 76533 and 644, that added together give a palindrome (77177).

The spelling of 76533644 in words is "seventy-six million, five hundred thirty-three thousand, six hundred forty-four".