78054064 has 20 divisors (see below), whose sum is σ = 164978280. Its totient is φ = 35479040.

The previous prime is 78054061. The next prime is 78054083. The reversal of 78054064 is 46045087.

It is not an unprimeable number, because it can be changed into a prime (78054061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221569 + ... + 221920.

It is an arithmetic number, because the mean of its divisors is an integer number (8248914).

Almost surely, 2^78054064 is an apocalyptic number.

It is an amenable number.

78054064 is an abundant number, since it is smaller than the sum of its proper divisors (86924216).

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

78054064 is a wasteful number, since it uses less digits than its factorization.

78054064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443508 (or 443502 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 78054064 is about 8834.8211074136. The cubic root of 78054064 is about 427.3645620456.

The spelling of 78054064 in words is "seventy-eight million, fifty-four thousand, sixty-four".