83226691 has 4 divisors (see below), whose sum is σ = 83282584. Its totient is φ = 83170800.

The previous prime is 83226677. The next prime is 83226709. The reversal of 83226691 is 19662238.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19662238 = 2 ⋅9831119.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83226691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83226691.

It is not an unprimeable number, because it can be changed into a prime (83226641) 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, 25650 + ... + 28711.

It is an arithmetic number, because the mean of its divisors is an integer number (20820646).

Almost surely, 2^83226691 is an apocalyptic number.

83226691 is a deficient number, since it is larger than the sum of its proper divisors (55893).

83226691 is a wasteful number, since it uses less digits than its factorization.

83226691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55892.

The product of its digits is 31104, while the sum is 37.

The square root of 83226691 is about 9122.8663806942. The cubic root of 83226691 is about 436.6038315144.

The spelling of 83226691 in words is "eighty-three million, two hundred twenty-six thousand, six hundred ninety-one".