83696819 has 4 divisors (see below), whose sum is σ = 85068960. Its totient is φ = 82324680.

The previous prime is 83696803. The next prime is 83696827. The reversal of 83696819 is 91869638.

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

It is a cyclic number.

It is not a de Polignac number, because 83696819 - 2⁴ = 83696803 is a prime.

It is a super-2 number, since 2×83696819² = 14010315021437522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83696719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685979 + ... + 686100.

It is an arithmetic number, because the mean of its divisors is an integer number (21267240).

Almost surely, 2^83696819 is an apocalyptic number.

83696819 is a deficient number, since it is larger than the sum of its proper divisors (1372141).

83696819 is a wasteful number, since it uses less digits than its factorization.

83696819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372140.

The product of its digits is 559872, while the sum is 50.

The square root of 83696819 is about 9148.5965590357. The cubic root of 83696819 is about 437.4243792020.

The spelling of 83696819 in words is "eighty-three million, six hundred ninety-six thousand, eight hundred nineteen".