78535452 has 24 divisors (see below), whose sum is σ = 184874256. Its totient is φ = 25946368.

The previous prime is 78535447. The next prime is 78535477. The reversal of 78535452 is 25453587.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 78535452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27603 + ... + 30314.

It is an arithmetic number, because the mean of its divisors is an integer number (7703094).

Almost surely, 2^78535452 is an apocalyptic number.

It is an amenable number.

78535452 is an abundant number, since it is smaller than the sum of its proper divisors (106338804).

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

78535452 is a wasteful number, since it uses less digits than its factorization.

78535452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58037 (or 58035 counting only the distinct ones).

The product of its digits is 168000, while the sum is 39.

The square root of 78535452 is about 8862.0230196045. The cubic root of 78535452 is about 428.2413333106.

It can be divided in two parts, 78535 and 452, that added together give a palindrome (78987).

The spelling of 78535452 in words is "seventy-eight million, five hundred thirty-five thousand, four hundred fifty-two".