77628324 has 48 divisors (see below), whose sum is σ = 193814208. Its totient is φ = 24096768.

The previous prime is 77628283. The next prime is 77628337. The reversal of 77628324 is 42382677.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17827 + ... + 21749.

It is an arithmetic number, because the mean of its divisors is an integer number (4037796).

Almost surely, 2^77628324 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 77628324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96907104).

77628324 is an abundant number, since it is smaller than the sum of its proper divisors (116185884).

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

77628324 is a wasteful number, since it uses less digits than its factorization.

77628324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044 (or 4042 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 77628324 is about 8810.6937297809. The cubic root of 77628324 is about 426.5861357886.

The spelling of 77628324 in words is "seventy-seven million, six hundred twenty-eight thousand, three hundred twenty-four".