78246212 has 12 divisors (see below), whose sum is σ = 149379216. Its totient is φ = 35566440.

The previous prime is 78246209. The next prime is 78246221. The reversal of 78246212 is 21264287.

It is a super-3 number, since 3×78246212³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889118 + ... + 889205.

It is an arithmetic number, because the mean of its divisors is an integer number (12448268).

Almost surely, 2^78246212 is an apocalyptic number.

It is an amenable number.

78246212 is a deficient number, since it is larger than the sum of its proper divisors (71133004).

78246212 is a wasteful number, since it uses less digits than its factorization.

78246212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778338 (or 1778336 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 78246212 is about 8845.6888934667. The cubic root of 78246212 is about 427.7149600056.

The spelling of 78246212 in words is "seventy-eight million, two hundred forty-six thousand, two hundred twelve".