78756234 has 8 divisors (see below), whose sum is σ = 157512480. Its totient is φ = 26252076.

The previous prime is 78756233. The next prime is 78756259. The reversal of 78756234 is 43265787.

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

78756234 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (78756233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6563014 + ... + 6563025.

It is an arithmetic number, because the mean of its divisors is an integer number (19689060).

Almost surely, 2^78756234 is an apocalyptic number.

78756234 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.

78756234 is a wasteful number, since it uses less digits than its factorization.

78756234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13126044.

The product of its digits is 282240, while the sum is 42.

The square root of 78756234 is about 8874.4709138066. The cubic root of 78756234 is about 428.6422542312.

The spelling of 78756234 in words is "seventy-eight million, seven hundred fifty-six thousand, two hundred thirty-four".