83939678 has 8 divisors (see below), whose sum is σ = 125994960. Its totient is φ = 41941360.

The previous prime is 83939573. The next prime is 83939683. The reversal of 83939678 is 87693938.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10343 + ... + 16578.

It is an arithmetic number, because the mean of its divisors is an integer number (15749370).

Almost surely, 2^83939678 is an apocalyptic number.

83939678 is a deficient number, since it is larger than the sum of its proper divisors (42055282).

83939678 is a wasteful number, since it uses less digits than its factorization.

83939678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28482.

The product of its digits is 1959552, while the sum is 53.

The square root of 83939678 is about 9161.8599640029. The cubic root of 83939678 is about 437.8470550139.

The spelling of 83939678 in words is "eighty-three million, nine hundred thirty-nine thousand, six hundred seventy-eight".