78452922 has 8 divisors (see below), whose sum is σ = 156905856. Its totient is φ = 26150972.

The previous prime is 78452911. The next prime is 78452939. The reversal of 78452922 is 22925487.

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

78452922 is an admirable number.

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 in 3 ways as a sum of consecutive naturals, for example, 6537738 + ... + 6537749.

It is an arithmetic number, because the mean of its divisors is an integer number (19613232).

Almost surely, 2^78452922 is an apocalyptic number.

78452922 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.

78452922 is a wasteful number, since it uses less digits than its factorization.

78452922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13075492.

The product of its digits is 80640, while the sum is 39.

The square root of 78452922 is about 8857.3654096464. The cubic root of 78452922 is about 428.0912730779.

The spelling of 78452922 in words is "seventy-eight million, four hundred fifty-two thousand, nine hundred twenty-two".