78286896 has 30 divisors (see below), whose sum is σ = 219094980. Its totient is φ = 26095584.

The previous prime is 78286891. The next prime is 78286909. The reversal of 78286896 is 69868287.

It is a super-2 number, since 2×78286896² = 12257676170629632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78286891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 271686 + ... + 271973.

It is an arithmetic number, because the mean of its divisors is an integer number (7303166).

Almost surely, 2^78286896 is an apocalyptic number.

It is an amenable number.

78286896 is an abundant number, since it is smaller than the sum of its proper divisors (140808084).

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

78286896 is a wasteful number, since it uses less digits than its factorization.

78286896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543673 (or 543664 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 78286896 is about 8847.9882459235. The cubic root of 78286896 is about 427.7890770776.

It can be divided in two parts, 782 and 86896, that added together give a palindrome (87678).

The spelling of 78286896 in words is "seventy-eight million, two hundred eighty-six thousand, eight hundred ninety-six".