78830394 has 16 divisors (see below), whose sum is σ = 166935168. Its totient is φ = 24731072.

The previous prime is 78830371. The next prime is 78830417. The reversal of 78830394 is 49303887.

It is an interprime number because it is at equal distance from previous prime (78830371) and next prime (78830417).

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, 386322 + ... + 386525.

It is an arithmetic number, because the mean of its divisors is an integer number (10433448).

Almost surely, 2^78830394 is an apocalyptic number.

78830394 is an abundant number, since it is smaller than the sum of its proper divisors (88104774).

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

78830394 is a wasteful number, since it uses less digits than its factorization.

78830394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772869.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 78830394 is about 8878.6482079199. The cubic root of 78830394 is about 428.7767542173.

The spelling of 78830394 in words is "seventy-eight million, eight hundred thirty thousand, three hundred ninety-four".