8027921 has 8 divisors (see below), whose sum is σ = 8805888. Its totient is φ = 7258000.

The previous prime is 8027911. The next prime is 8027933. The reversal of 8027921 is 1297208.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-8027921 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 (8027911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191 + ... + 4011.

It is an arithmetic number, because the mean of its divisors is an integer number (1100736).

Almost surely, 2^8027921 is an apocalyptic number.

It is an amenable number.

8027921 is a deficient number, since it is larger than the sum of its proper divisors (777967).

8027921 is a wasteful number, since it uses less digits than its factorization.

8027921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4023.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 8027921 is about 2833.3586077304. The cubic root of 8027921 is about 200.2324048354.

The spelling of 8027921 in words is "eight million, twenty-seven thousand, nine hundred twenty-one".