80028001 has 4 divisors (see below), whose sum is σ = 80339652. Its totient is φ = 79716352.

The previous prime is 80027989. The next prime is 80028043. The reversal of 80028001 is 10082008.

It is a happy number.

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 43243776 + 36784225 = 6576^2 + 6065^2 .

It is a cyclic number.

It is not a de Polignac number, because 80028001 - 2⁷ = 80027873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80028001.

It is not an unprimeable number, because it can be changed into a prime (80028071) 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, 155440 + ... + 155953.

It is an arithmetic number, because the mean of its divisors is an integer number (20084913).

Almost surely, 2^80028001 is an apocalyptic number.

It is an amenable number.

80028001 is a deficient number, since it is larger than the sum of its proper divisors (311651).

80028001 is a wasteful number, since it uses less digits than its factorization.

80028001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311650.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 80028001 is about 8945.8370765401. The cubic root of 80028001 is about 430.9372040804.

The spelling of 80028001 in words is "eighty million, twenty-eight thousand, one".