78824432 has 10 divisors (see below), whose sum is σ = 152722368. Its totient is φ = 39412208.

The previous prime is 78824423. The next prime is 78824437. The reversal of 78824432 is 23442887.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78824437) 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 as a sum of consecutive naturals, namely, 2463248 + ... + 2463279.

Almost surely, 2^78824432 is an apocalyptic number.

It is an amenable number.

78824432 is a deficient number, since it is larger than the sum of its proper divisors (73897936).

78824432 is a wasteful number, since it uses less digits than its factorization.

78824432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926535 (or 4926529 counting only the distinct ones).

The product of its digits is 86016, while the sum is 38.

The square root of 78824432 is about 8878.3124522625. The cubic root of 78824432 is about 428.7659443790.

The spelling of 78824432 in words is "seventy-eight million, eight hundred twenty-four thousand, four hundred thirty-two".