78268 has 12 divisors (see below), whose sum is σ = 145152. Its totient is φ = 36800.

The previous prime is 78259. The next prime is 78277. The reversal of 78268 is 86287.

It is an interprime number because it is at equal distance from previous prime (78259) and next prime (78277).

It is a super-2 number, since 2×78268² = 12251759648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

78268 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508 + ... + 643.

It is an arithmetic number, because the mean of its divisors is an integer number (12096).

2⁷⁸²⁶⁸ is an apocalyptic number.

It is an amenable number.

78268 is a deficient number, since it is larger than the sum of its proper divisors (66884).

78268 is a wasteful number, since it uses less digits than its factorization.

78268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 1170 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 78268 is about 279.7641864142. The cubic root of 78268 is about 42.7754656022.

The spelling of 78268 in words is "seventy-eight thousand, two hundred sixty-eight".