83681927 has 8 divisors (see below), whose sum is σ = 98721792. Its totient is φ = 69413400.

The previous prime is 83681921. The next prime is 83681933. The reversal of 83681927 is 72918638.

It is an interprime number because it is at equal distance from previous prime (83681921) and next prime (83681933).

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

It is not a de Polignac number, because 83681927 - 2¹⁶ = 83616391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83681921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192599 + ... + 193032.

It is an arithmetic number, because the mean of its divisors is an integer number (12340224).

Almost surely, 2^83681927 is an apocalyptic number.

83681927 is a deficient number, since it is larger than the sum of its proper divisors (15039865).

83681927 is a wasteful number, since it uses less digits than its factorization.

83681927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385669.

The product of its digits is 145152, while the sum is 44.

The square root of 83681927 is about 9147.7826275005. The cubic root of 83681927 is about 437.3984343281.

The spelling of 83681927 in words is "eighty-three million, six hundred eighty-one thousand, nine hundred twenty-seven".