78327504 has 60 divisors (see below), whose sum is σ = 220985856. Its totient is φ = 25897536.

The previous prime is 78327503. The next prime is 78327541. The reversal of 78327504 is 40572387.

It is a super-2 number, since 2×78327504² = 12270395765740032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78327503) 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 in 11 ways as a sum of consecutive naturals, for example, 16147 + ... + 20429.

Almost surely, 2^78327504 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 78327504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110492928).

78327504 is an abundant number, since it is smaller than the sum of its proper divisors (142658352).

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

78327504 is a wasteful number, since it uses less digits than its factorization.

78327504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424 (or 4415 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 78327504 is about 8850.2827073490. The cubic root of 78327504 is about 427.8630300932.

The spelling of 78327504 in words is "seventy-eight million, three hundred twenty-seven thousand, five hundred four".