8220832073 has 4 divisors (see below), whose sum is σ = 8221652868. Its totient is φ = 8220011280.

The previous prime is 8220832019. The next prime is 8220832099. The reversal of 8220832073 is 3702380228.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1524355849 + 6696476224 = 39043^2 + 81832^2 .

It is a cyclic number.

It is not a de Polignac number, because 8220832073 - 2¹² = 8220827977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8220832973) 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, 395186 + ... + 415467.

It is an arithmetic number, because the mean of its divisors is an integer number (2055413217).

Almost surely, 2^8220832073 is an apocalyptic number.

It is an amenable number.

8220832073 is a deficient number, since it is larger than the sum of its proper divisors (820795).

8220832073 is a wasteful number, since it uses less digits than its factorization.

8220832073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820794.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 8220832073 is about 90668.8042989429. The cubic root of 8220832073 is about 2018.2358934855.

The spelling of 8220832073 in words is "eight billion, two hundred twenty million, eight hundred thirty-two thousand, seventy-three".