83995801 has 4 divisors (see below), whose sum is σ = 84356532. Its totient is φ = 83635072.

The previous prime is 83995787. The next prime is 83995811. The reversal of 83995801 is 10859938.

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 21206025 + 62789776 = 4605^2 + 7924^2 .

It is a cyclic number.

It is not a de Polignac number, because 83995801 - 2²³ = 75607193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83995811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180016 + ... + 180481.

It is an arithmetic number, because the mean of its divisors is an integer number (21089133).

Almost surely, 2^83995801 is an apocalyptic number.

It is an amenable number.

83995801 is a deficient number, since it is larger than the sum of its proper divisors (360731).

83995801 is a wasteful number, since it uses less digits than its factorization.

83995801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360730.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 83995801 is about 9164.9223128186. The cubic root of 83995801 is about 437.9446164065.

The spelling of 83995801 in words is "eighty-three million, nine hundred ninety-five thousand, eight hundred one".