78503232 has 112 divisors (see below), whose sum is σ = 224576640. Its totient is φ = 24127488.

The previous prime is 78503219. The next prime is 78503273. The reversal of 78503232 is 23230587.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 78503232.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 127758 + ... + 128370.

Almost surely, 2^78503232 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 78503232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112288320).

78503232 is an abundant number, since it is smaller than the sum of its proper divisors (146073408).

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

78503232 is a wasteful number, since it uses less digits than its factorization.

78503232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 78503232 is about 8860.2049637692. The cubic root of 78503232 is about 428.1827617876.

The spelling of 78503232 in words is "seventy-eight million, five hundred three thousand, two hundred thirty-two".