78741504 has 128 divisors (see below), whose sum is σ = 235926000. Its totient is φ = 25952256.

The previous prime is 78741499. The next prime is 78741511. The reversal of 78741504 is 40514787.

It is a tau number, because it is divible by the number of its divisors (128).

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

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, 884692 + ... + 884780.

Almost surely, 2^78741504 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 78741504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117963000).

78741504 is an abundant number, since it is smaller than the sum of its proper divisors (157184496).

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

78741504 is an frugal number, since it uses more digits than its factorization.

78741504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 78741504 is about 8873.6409663678. The cubic root of 78741504 is about 428.6155291761.

The spelling of 78741504 in words is "seventy-eight million, seven hundred forty-one thousand, five hundred four".