75678 has 8 divisors (see below), whose sum is σ = 151368. Its totient is φ = 25224.

The previous prime is 75659. The next prime is 75679. The reversal of 75678 is 87657.

It is a sphenic number, since it is the product of 3 distinct primes.

75678 is an admirable number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75679) 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, 6301 + ... + 6312.

It is an arithmetic number, because the mean of its divisors is an integer number (18921).

2⁷⁵⁶⁷⁸ is an apocalyptic number.

75678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75684).

75678 is a wasteful number, since it uses less digits than its factorization.

75678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12618.

The product of its digits is 11760, while the sum is 33.

The square root of 75678 is about 275.0963467587. The cubic root of 75678 is about 42.2983294390.

The spelling of 75678 in words is "seventy-five thousand, six hundred seventy-eight".