78062912 has 56 divisors (see below), whose sum is σ = 165424104. Its totient is φ = 36421632.

The previous prime is 78062909. The next prime is 78062921. The reversal of 78062912 is 21926087.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27709696 + 50353216 = 5264^2 + 7096^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170588 + ... + 171044.

Almost surely, 2^78062912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78062912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82712052).

78062912 is an abundant number, since it is smaller than the sum of its proper divisors (87361192).

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

78062912 is a wasteful number, since it uses less digits than its factorization.

78062912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 78062912 is about 8835.3218390730. The cubic root of 78062912 is about 427.3807097368.

Adding to 78062912 its reverse (21926087), we get a palindrome (99988999).

The spelling of 78062912 in words is "seventy-eight million, sixty-two thousand, nine hundred twelve".