78230712 has 32 divisors (see below), whose sum is σ = 223516800. Its totient is φ = 22351584.

The previous prime is 78230687. The next prime is 78230743. The reversal of 78230712 is 21703287.

It is a super-2 number, since 2×78230712² = 12240088600053888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78230712.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 232662 + ... + 232997.

It is an arithmetic number, because the mean of its divisors is an integer number (6984900).

Almost surely, 2^78230712 is an apocalyptic number.

It is an amenable number.

78230712 is an abundant number, since it is smaller than the sum of its proper divisors (145286088).

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

78230712 is a wasteful number, since it uses less digits than its factorization.

78230712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465675 (or 465671 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 78230712 is about 8844.8127170676. The cubic root of 78230712 is about 427.6867157429.

Adding to 78230712 its reverse (21703287), we get a palindrome (99933999).

The spelling of 78230712 in words is "seventy-eight million, two hundred thirty thousand, seven hundred twelve".