8335021 has 4 divisors (see below), whose sum is σ = 8360092. Its totient is φ = 8309952.

The previous prime is 8335007. The next prime is 8335031. The reversal of 8335021 is 1205338.

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 1179396 + 7155625 = 1086^2 + 2675^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8335021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8334983 and 8335001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8335031) 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, 12030 + ... + 12703.

It is an arithmetic number, because the mean of its divisors is an integer number (2090023).

Almost surely, 2^8335021 is an apocalyptic number.

It is an amenable number.

8335021 is a deficient number, since it is larger than the sum of its proper divisors (25071).

8335021 is a wasteful number, since it uses less digits than its factorization.

8335021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25070.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 8335021 is about 2887.0436435911. The cubic root of 8335021 is about 202.7537519014.

The spelling of 8335021 in words is "eight million, three hundred thirty-five thousand, twenty-one".