78958384 has 10 divisors (see below), whose sum is σ = 152981900. Its totient is φ = 39479184.

The previous prime is 78958351. The next prime is 78958391. The reversal of 78958384 is 48385987.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2467434 + ... + 2467465.

It is an arithmetic number, because the mean of its divisors is an integer number (15298190).

Almost surely, 2^78958384 is an apocalyptic number.

It is an amenable number.

78958384 is a deficient number, since it is larger than the sum of its proper divisors (74023516).

78958384 is a wasteful number, since it uses less digits than its factorization.

78958384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4934907 (or 4934901 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The square root of 78958384 is about 8885.8530260184. The cubic root of 78958384 is about 429.0086844832.

The spelling of 78958384 in words is "seventy-eight million, nine hundred fifty-eight thousand, three hundred eighty-four".