83345291 has 4 divisors (see below), whose sum is σ = 83364072. Its totient is φ = 83326512.

The previous prime is 83345287. The next prime is 83345293. The reversal of 83345291 is 19254338.

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 83345291 - 2² = 83345287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83345293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400 + ... + 12986.

It is an arithmetic number, because the mean of its divisors is an integer number (20841018).

Almost surely, 2^83345291 is an apocalyptic number.

83345291 is a deficient number, since it is larger than the sum of its proper divisors (18781).

83345291 is a wasteful number, since it uses less digits than its factorization.

83345291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18780.

The product of its digits is 25920, while the sum is 35.

The square root of 83345291 is about 9129.3642166363. The cubic root of 83345291 is about 436.8111233370.

The spelling of 83345291 in words is "eighty-three million, three hundred forty-five thousand, two hundred ninety-one".