83693986 has 8 divisors (see below), whose sum is σ = 129590784. Its totient is φ = 40497060.

The previous prime is 83693969. The next prime is 83693999. The reversal of 83693986 is 68939638.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674890 + ... + 675013.

It is an arithmetic number, because the mean of its divisors is an integer number (16198848).

Almost surely, 2^83693986 is an apocalyptic number.

83693986 is a deficient number, since it is larger than the sum of its proper divisors (45896798).

83693986 is a wasteful number, since it uses less digits than its factorization.

83693986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349936.

The product of its digits is 1679616, while the sum is 52.

The square root of 83693986 is about 9148.4417252339. The cubic root of 83693986 is about 437.4194437805.

The spelling of 83693986 in words is "eighty-three million, six hundred ninety-three thousand, nine hundred eighty-six".