77493828 has 24 divisors (see below), whose sum is σ = 181137600. Its totient is φ = 25785760.

The previous prime is 77493827. The next prime is 77493841. The reversal of 77493828 is 82839477.

It is not an unprimeable number, because it can be changed into a prime (77493821) 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 7 ways as a sum of consecutive naturals, for example, 1798 + ... + 12578.

It is an arithmetic number, because the mean of its divisors is an integer number (7547400).

Almost surely, 2^77493828 is an apocalyptic number.

It is an amenable number.

77493828 is an abundant number, since it is smaller than the sum of its proper divisors (103643772).

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

77493828 is a wasteful number, since it uses less digits than its factorization.

77493828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11387 (or 11385 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 77493828 is about 8803.0578778059. The cubic root of 77493828 is about 426.3396308505.

The spelling of 77493828 in words is "seventy-seven million, four hundred ninety-three thousand, eight hundred twenty-eight".