75800321 has 4 divisors (see below), whose sum is σ = 76652100. Its totient is φ = 74948544.

The previous prime is 75800311. The next prime is 75800327. The reversal of 75800321 is 12300857.

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 41460721 + 34339600 = 6439^2 + 5860^2 .

It is a cyclic number.

It is not a de Polignac number, because 75800321 - 2¹⁴ = 75783937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75800327) 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, 425756 + ... + 425933.

It is an arithmetic number, because the mean of its divisors is an integer number (19163025).

Almost surely, 2^75800321 is an apocalyptic number.

It is an amenable number.

75800321 is a deficient number, since it is larger than the sum of its proper divisors (851779).

75800321 is an equidigital number, since it uses as much as digits as its factorization.

75800321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851778.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 75800321 is about 8706.3379787371. The cubic root of 75800321 is about 423.2110659500.

The spelling of 75800321 in words is "seventy-five million, eight hundred thousand, three hundred twenty-one".