78716922 has 16 divisors (see below), whose sum is σ = 159591360. Its totient is φ = 25879392.

The previous prime is 78716917. The next prime is 78716923. The reversal of 78716922 is 22961787.

It is not an unprimeable number, because it can be changed into a prime (78716923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89422 + ... + 90297.

It is an arithmetic number, because the mean of its divisors is an integer number (9974460).

Almost surely, 2^78716922 is an apocalyptic number.

78716922 is an abundant number, since it is smaller than the sum of its proper divisors (80874438).

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

78716922 is a wasteful number, since it uses less digits than its factorization.

78716922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179797.

The product of its digits is 84672, while the sum is 42.

The square root of 78716922 is about 8872.2557447359. The cubic root of 78716922 is about 428.5709219359.

The spelling of 78716922 in words is "seventy-eight million, seven hundred sixteen thousand, nine hundred twenty-two".