83686293 has 12 divisors (see below), whose sum is σ = 120964480. Its totient is φ = 55751976.

The previous prime is 83686271. The next prime is 83686301. The reversal of 83686293 is 39268638.

It is not a de Polignac number, because 83686293 - 2⁵ = 83686261 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 (83686243) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 17118 + ... + 21456.

Almost surely, 2^83686293 is an apocalyptic number.

It is an amenable number.

83686293 is a deficient number, since it is larger than the sum of its proper divisors (37278187).

83686293 is a wasteful number, since it uses less digits than its factorization.

83686293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6488 (or 6485 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 83686293 is about 9148.0212614532. The cubic root of 83686293 is about 437.4060411014.

The spelling of 83686293 in words is "eighty-three million, six hundred eighty-six thousand, two hundred ninety-three".