78065214 has 16 divisors (see below), whose sum is σ = 159452928. Its totient is φ = 25467992.

The previous prime is 78065213. The next prime is 78065257. The reversal of 78065214 is 41256087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78065213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138132 + ... + 138695.

It is an arithmetic number, because the mean of its divisors is an integer number (9965808).

Almost surely, 2^78065214 is an apocalyptic number.

78065214 is an abundant number, since it is smaller than the sum of its proper divisors (81387714).

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

78065214 is a wasteful number, since it uses less digits than its factorization.

78065214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276879.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 78065214 is about 8835.4521106732. The cubic root of 78065214 is about 427.3849107105.

The spelling of 78065214 in words is "seventy-eight million, sixty-five thousand, two hundred fourteen".