83219705 has 8 divisors (see below), whose sum is σ = 103307400. Its totient is φ = 64279936.

The previous prime is 83219687. The next prime is 83219707. The reversal of 83219705 is 50791238.

It can be written as a sum of positive squares in 4 ways, for example, as 5550736 + 77668969 = 2356^2 + 8813^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83219705 - 2²⁴ = 66442489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83219707) 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 7 ways as a sum of consecutive naturals, for example, 286820 + ... + 287109.

It is an arithmetic number, because the mean of its divisors is an integer number (12913425).

Almost surely, 2^83219705 is an apocalyptic number.

It is an amenable number.

83219705 is a deficient number, since it is larger than the sum of its proper divisors (20087695).

83219705 is a wasteful number, since it uses less digits than its factorization.

83219705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573963.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 83219705 is about 9122.4834886121. The cubic root of 83219705 is about 436.5916150821.

The spelling of 83219705 in words is "eighty-three million, two hundred nineteen thousand, seven hundred five".