78078354 has 8 divisors (see below), whose sum is σ = 156156720. Its totient is φ = 26026116.

The previous prime is 78078323. The next prime is 78078359. The reversal of 78078354 is 45387087.

It is a sphenic number, since it is the product of 3 distinct primes.

78078354 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (78078359) 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, 6506524 + ... + 6506535.

It is an arithmetic number, because the mean of its divisors is an integer number (19519590).

Almost surely, 2^78078354 is an apocalyptic number.

78078354 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78078354 is a wasteful number, since it uses less digits than its factorization.

78078354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13013064.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 78078354 is about 8836.1956746102. The cubic root of 78078354 is about 427.4088886233.

It can be divided in two parts, 7807 and 8354, that added together give a palindrome (16161).

The spelling of 78078354 in words is "seventy-eight million, seventy-eight thousand, three hundred fifty-four".