73784648 has 16 divisors (see below), whose sum is σ = 158110080. Its totient is φ = 31621968.

The previous prime is 73784647. The next prime is 73784653. The reversal of 73784648 is 84648737.

It is not an unprimeable number, because it can be changed into a prime (73784647) 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 3 ways as a sum of consecutive naturals, for example, 658736 + ... + 658847.

It is an arithmetic number, because the mean of its divisors is an integer number (9881880).

Almost surely, 2^73784648 is an apocalyptic number.

It is an amenable number.

73784648 is an abundant number, since it is smaller than the sum of its proper divisors (84325432).

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

73784648 is a wasteful number, since it uses less digits than its factorization.

73784648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317596 (or 1317592 counting only the distinct ones).

The product of its digits is 903168, while the sum is 47.

The square root of 73784648 is about 8589.7990663344. The cubic root of 73784648 is about 419.4259883456.

The spelling of 73784648 in words is "seventy-three million, seven hundred eighty-four thousand, six hundred forty-eight".