77834328 has 64 divisors (see below), whose sum is σ = 228614400. Its totient is φ = 21770880.

The previous prime is 77834321. The next prime is 77834333. The reversal of 77834328 is 82343877.

It is a self number, because there is not a number n which added to its sum of digits gives 77834328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77834321) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7908 + ... + 14771.

It is an arithmetic number, because the mean of its divisors is an integer number (3572100).

Almost surely, 2^77834328 is an apocalyptic number.

77834328 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

77834328 is an abundant number, since it is smaller than the sum of its proper divisors (150780072).

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

77834328 is a wasteful number, since it uses less digits than its factorization.

77834328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22712 (or 22708 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 77834328 is about 8822.3765505673. The cubic root of 77834328 is about 426.9631495090.

The spelling of 77834328 in words is "seventy-seven million, eight hundred thirty-four thousand, three hundred twenty-eight".