78523464 has 64 divisors (see below), whose sum is σ = 203673600. Its totient is φ = 25210944.

The previous prime is 78523441. The next prime is 78523469. The reversal of 78523464 is 46432587.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (78523469) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 75057 + ... + 76095.

It is an arithmetic number, because the mean of its divisors is an integer number (3182400).

Almost surely, 2^78523464 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 78523464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101836800).

78523464 is an abundant number, since it is smaller than the sum of its proper divisors (125150136).

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

78523464 is a wasteful number, since it uses less digits than its factorization.

78523464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1158 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 78523464 is about 8861.3466245261. The cubic root of 78523464 is about 428.2195426492.

It can be divided in two parts, 78523 and 464, that added together give a palindrome (78987).

The spelling of 78523464 in words is "seventy-eight million, five hundred twenty-three thousand, four hundred sixty-four".