80842001 has 6 divisors (see below), whose sum is σ = 81224502. Its totient is φ = 80460800.

The previous prime is 80841991. The next prime is 80842049. The reversal of 80842001 is 10024808.

It can be written as a sum of positive squares in 3 ways, for example, as 45427600 + 35414401 = 6740^2 + 5951^2 .

It is a de Polignac number, because none of the positive numbers 2^k-80842001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80842051) 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 5 ways as a sum of consecutive naturals, for example, 179825 + ... + 180273.

It is an arithmetic number, because the mean of its divisors is an integer number (13537417).

Almost surely, 2^80842001 is an apocalyptic number.

It is an amenable number.

80842001 is a deficient number, since it is larger than the sum of its proper divisors (382501).

80842001 is an frugal number, since it uses more digits than its factorization.

80842001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 80842001 is about 8991.2179931309. The cubic root of 80842001 is about 432.3933620618.

Adding to 80842001 its reverse (10024808), we get a palindrome (90866809).

The spelling of 80842001 in words is "eighty million, eight hundred forty-two thousand, one".