78464322 has 16 divisors (see below), whose sum is σ = 174365280. Its totient is φ = 26154756.

The previous prime is 78464279. The next prime is 78464329. The reversal of 78464322 is 22346487.

78464322 is a `hidden beast` number, since 7 + 8 + 4 + 643 + 2 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (78464329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726468 + ... + 726575.

It is an arithmetic number, because the mean of its divisors is an integer number (10897830).

Almost surely, 2^78464322 is an apocalyptic number.

78464322 is an abundant number, since it is smaller than the sum of its proper divisors (95900958).

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

78464322 is a wasteful number, since it uses less digits than its factorization.

78464322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453054 (or 1453048 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 78464322 is about 8858.0089184873. The cubic root of 78464322 is about 428.1120073987.

The spelling of 78464322 in words is "seventy-eight million, four hundred sixty-four thousand, three hundred twenty-two".