78410212 has 12 divisors (see below), whose sum is σ = 137302396. Its totient is φ = 39180960.

The previous prime is 78410209. The next prime is 78410221. The reversal of 78410212 is 21201487.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32901696 + 45508516 = 5736^2 + 6746^2 .

It is a super-2 number, since 2×78410212² = 12296322691769888, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 2662 + ... + 12802.

Almost surely, 2^78410212 is an apocalyptic number.

It is an amenable number.

78410212 is a deficient number, since it is larger than the sum of its proper divisors (58892184).

78410212 is a wasteful number, since it uses less digits than its factorization.

78410212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12078 (or 12076 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 78410212 is about 8854.9540936134. The cubic root of 78410212 is about 428.0135742630.

Adding to 78410212 its reverse (21201487), we get a palindrome (99611699).

The spelling of 78410212 in words is "seventy-eight million, four hundred ten thousand, two hundred twelve".