78924922 has 8 divisors (see below), whose sum is σ = 121587156. Its totient is φ = 38395872.

The previous prime is 78924919. The next prime is 78924929. The reversal of 78924922 is 22942987.

It can be written as a sum of positive squares in 2 ways, for example, as 75498721 + 3426201 = 8689^2 + 1851^2 .

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

It is not an unprimeable number, because it can be changed into a prime (78924929) 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, 533203 + ... + 533350.

Almost surely, 2^78924922 is an apocalyptic number.

78924922 is a deficient number, since it is larger than the sum of its proper divisors (42662234).

78924922 is a wasteful number, since it uses less digits than its factorization.

78924922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066592.

The product of its digits is 145152, while the sum is 43.

The square root of 78924922 is about 8883.9699459194. The cubic root of 78924922 is about 428.9480723132.

The spelling of 78924922 in words is "seventy-eight million, nine hundred twenty-four thousand, nine hundred twenty-two".