78027748 has 12 divisors (see below), whose sum is σ = 141257340. Its totient is φ = 37668512.

The previous prime is 78027727. The next prime is 78027749. The reversal of 78027748 is 84772087.

It can be written as a sum of positive squares in 2 ways, for example, as 14379264 + 63648484 = 3792^2 + 7978^2 .

It is not an unprimeable number, because it can be changed into a prime (78027749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336211 + ... + 336442.

It is an arithmetic number, because the mean of its divisors is an integer number (11771445).

Almost surely, 2^78027748 is an apocalyptic number.

It is an amenable number.

78027748 is a deficient number, since it is larger than the sum of its proper divisors (63229592).

78027748 is a wasteful number, since it uses less digits than its factorization.

78027748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672686 (or 672684 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 43.

The square root of 78027748 is about 8833.3316477986. The cubic root of 78027748 is about 427.3165278609.

The spelling of 78027748 in words is "seventy-eight million, twenty-seven thousand, seven hundred forty-eight".