78248 has 8 divisors (see below), whose sum is σ = 146730. Its totient is φ = 39120.

The previous prime is 78241. The next prime is 78259. The reversal of 78248 is 84287.

It can be written as a sum of positive squares in only one way, i.e., 68644 + 9604 = 262^2 + 98^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×78248² = 12245499008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78248.

It is not an unprimeable number, because it can be changed into a prime (78241) by changing a digit.

78248 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4883 + ... + 4898.

2⁷⁸²⁴⁸ is an apocalyptic number.

It is an amenable number.

78248 is a deficient number, since it is larger than the sum of its proper divisors (68482).

78248 is a wasteful number, since it uses less digits than its factorization.

78248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9787 (or 9783 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 78248 is about 279.7284397411. The cubic root of 78248 is about 42.7718217878.

The spelling of 78248 in words is "seventy-eight thousand, two hundred forty-eight".