78604000 has 96 divisors (see below), whose sum is σ = 198053856. Its totient is φ = 30643200.

The previous prime is 78603997. The next prime is 78604027. The reversal of 78604000 is 40687.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171772 + ... + 172228.

It is an arithmetic number, because the mean of its divisors is an integer number (2063061).

Almost surely, 2^78604000 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 78604000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99026928).

78604000 is an abundant number, since it is smaller than the sum of its proper divisors (119449856).

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

78604000 is a wasteful number, since it uses less digits than its factorization.

78604000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 78604000 is about 8865.8896902680. The cubic root of 78604000 is about 428.3658908603.

Adding to 78604000 its reverse (40687), we get a palindrome (78644687).

The spelling of 78604000 in words is "seventy-eight million, six hundred four thousand".