83678 has 16 divisors (see below), whose sum is σ = 147840. Its totient is φ = 34776.

The previous prime is 83663. The next prime is 83689. The reversal of 83678 is 87638.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

83678 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 7 ways as a sum of consecutive naturals, for example, 533 + ... + 671.

It is an arithmetic number, because the mean of its divisors is an integer number (9240).

2⁸³⁶⁷⁸ is an apocalyptic number.

83678 is a deficient number, since it is larger than the sum of its proper divisors (64162).

83678 is a wasteful number, since it uses less digits than its factorization.

83678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191.

The product of its digits is 8064, while the sum is 32.

The square root of 83678 is about 289.2714987689. The cubic root of 83678 is about 43.7391592188.

The spelling of 83678 in words is "eighty-three thousand, six hundred seventy-eight".