78481722 has 32 divisors (see below), whose sum is σ = 171648000. Its totient is φ = 23724720.

The previous prime is 78481721. The next prime is 78481829. The reversal of 78481722 is 22718487.

It is not an unprimeable number, because it can be changed into a prime (78481721) 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 15 ways as a sum of consecutive naturals, for example, 31743 + ... + 34125.

It is an arithmetic number, because the mean of its divisors is an integer number (5364000).

Almost surely, 2^78481722 is an apocalyptic number.

78481722 is an abundant number, since it is smaller than the sum of its proper divisors (93166278).

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

78481722 is a wasteful number, since it uses less digits than its factorization.

78481722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898.

The product of its digits is 50176, while the sum is 39.

The square root of 78481722 is about 8858.9910260706. The cubic root of 78481722 is about 428.1436506482.

The spelling of 78481722 in words is "seventy-eight million, four hundred eighty-one thousand, seven hundred twenty-two".