9002021 has 8 divisors (see below), whose sum is σ = 10343424. Its totient is φ = 7674480.

The previous prime is 9002011. The next prime is 9002023. The reversal of 9002021 is 1202009.

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

It is a cyclic number.

It is not a de Polignac number, because 9002021 - 2¹⁰ = 9000997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9001987 and 9002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9002023) 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, 2030 + ... + 4703.

It is an arithmetic number, because the mean of its divisors is an integer number (1292928).

Almost surely, 2^9002021 is an apocalyptic number.

It is an amenable number.

9002021 is a deficient number, since it is larger than the sum of its proper divisors (1341403).

9002021 is a wasteful number, since it uses less digits than its factorization.

9002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 9002021 is about 3000.3368144260. The cubic root of 9002021 is about 208.0239509525.

The spelling of 9002021 in words is "nine million, two thousand, twenty-one".