78573376 has 56 divisors (see below), whose sum is σ = 179726336. Its totient is φ = 33384960.

The previous prime is 78573353. The next prime is 78573377. The reversal of 78573376 is 67337587.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78573377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56206 + ... + 57586.

Almost surely, 2^78573376 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 78573376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89863168).

78573376 is an abundant number, since it is smaller than the sum of its proper divisors (101152960).

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

78573376 is a wasteful number, since it uses less digits than its factorization.

78573376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527 (or 1517 counting only the distinct ones).

The product of its digits is 740880, while the sum is 46.

The square root of 78573376 is about 8864.1624533850. The cubic root of 78573376 is about 428.3102533990.

The spelling of 78573376 in words is "seventy-eight million, five hundred seventy-three thousand, three hundred seventy-six".