83078 has 4 divisors (see below), whose sum is σ = 124620. Its totient is φ = 41538.
The previous prime is 83077. The next prime is 83089. The reversal of 83078 is 87038.
It is a semiprime because it is the product of two primes.
It is an Ulam number.
It is an alternating number because its digits alternate between even and odd.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (83071) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20768 + ... + 20771.
It is an arithmetic number, because the mean of its divisors is an integer number (31155).
283078 is an apocalyptic number.
83078 is a deficient number, since it is larger than the sum of its proper divisors (41542).
83078 is a wasteful number, since it uses less digits than its factorization.
83078 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41541.
The product of its (nonzero) digits is 1344, while the sum is 26.
The square root of 83078 is about 288.2325450049. The cubic root of 83078 is about 43.6343667542.
The spelling of 83078 in words is "eighty-three thousand, seventy-eight".
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