83686354 has 4 divisors (see below), whose sum is σ = 125529534. Its totient is φ = 41843176.

The previous prime is 83686333. The next prime is 83686363. The reversal of 83686354 is 45368638.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70107129 + 13579225 = 8373^2 + 3685^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 83686354.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20921587 + ... + 20921590.

Almost surely, 2^83686354 is an apocalyptic number.

83686354 is a deficient number, since it is larger than the sum of its proper divisors (41843180).

83686354 is a wasteful number, since it uses less digits than its factorization.

83686354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41843179.

The product of its digits is 414720, while the sum is 43.

The square root of 83686354 is about 9148.0245955069. The cubic root of 83686354 is about 437.4061473784.

The spelling of 83686354 in words is "eighty-three million, six hundred eighty-six thousand, three hundred fifty-four".