78951212 has 6 divisors (see below), whose sum is σ = 138164628. Its totient is φ = 39475604.

The previous prime is 78951193. The next prime is 78951217. The reversal of 78951212 is 21215987.

78951212 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

78951212 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (78951217) 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 as a sum of consecutive naturals, namely, 9868898 + ... + 9868905.

It is an arithmetic number, because the mean of its divisors is an integer number (23027438).

Almost surely, 2^78951212 is an apocalyptic number.

It is an amenable number.

78951212 is a deficient number, since it is larger than the sum of its proper divisors (59213416).

78951212 is a wasteful number, since it uses less digits than its factorization.

78951212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19737807 (or 19737805 counting only the distinct ones).

The product of its digits is 10080, while the sum is 35.

The square root of 78951212 is about 8885.4494540231. The cubic root of 78951212 is about 428.9956947567.

The spelling of 78951212 in words is "seventy-eight million, nine hundred fifty-one thousand, two hundred twelve".