78012722 has 8 divisors (see below), whose sum is σ = 117273216. Its totient is φ = 38921652.

The previous prime is 78012721. The next prime is 78012731. The reversal of 78012722 is 22721087.

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 (78012721) 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 3 ways as a sum of consecutive naturals, for example, 41198 + ... + 43049.

It is an arithmetic number, because the mean of its divisors is an integer number (14659152).

Almost surely, 2^78012722 is an apocalyptic number.

78012722 is a deficient number, since it is larger than the sum of its proper divisors (39260494).

78012722 is a wasteful number, since it uses less digits than its factorization.

78012722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84712.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 78012722 is about 8832.4810783834. The cubic root of 78012722 is about 427.2890962932.

The spelling of 78012722 in words is "seventy-eight million, twelve thousand, seven hundred twenty-two".