78286048 has 12 divisors (see below), whose sum is σ = 154125720. Its totient is φ = 39143008.

The previous prime is 78286001. The next prime is 78286049. The reversal of 78286048 is 84068287.

It is a super-2 number, since 2×78286048² = 12257410622916608, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78285995 and 78286013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78286049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1223188 + ... + 1223251.

It is an arithmetic number, because the mean of its divisors is an integer number (12843810).

Almost surely, 2^78286048 is an apocalyptic number.

It is an amenable number.

78286048 is a deficient number, since it is larger than the sum of its proper divisors (75839672).

78286048 is a wasteful number, since it uses less digits than its factorization.

78286048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446449 (or 2446441 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 78286048 is about 8847.9403252961. The cubic root of 78286048 is about 427.7875324750.

The spelling of 78286048 in words is "seventy-eight million, two hundred eighty-six thousand, forty-eight".