78799584 has 48 divisors (see below), whose sum is σ = 207969552. Its totient is φ = 26124288.

The previous prime is 78799561. The next prime is 78799601. The reversal of 78799584 is 48599787.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16402 + ... + 20654.

It is an arithmetic number, because the mean of its divisors is an integer number (4332699).

Almost surely, 2^78799584 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 78799584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103984776).

78799584 is an abundant number, since it is smaller than the sum of its proper divisors (129169968).

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

78799584 is a wasteful number, since it uses less digits than its factorization.

78799584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459 (or 4451 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 57.

The square root of 78799584 is about 8876.9129769307. The cubic root of 78799584 is about 428.7208860318.

The spelling of 78799584 in words is "seventy-eight million, seven hundred ninety-nine thousand, five hundred eighty-four".