7330021 has 4 divisors (see below), whose sum is σ = 7508844. Its totient is φ = 7151200.

The previous prime is 7330019. The next prime is 7330027. The reversal of 7330021 is 1200337.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1200337 = 709 ⋅1693.

It can be written as a sum of positive squares in 2 ways, for example, as 497025 + 6832996 = 705^2 + 2614^2 .

It is a cyclic number.

It is not a de Polignac number, because 7330021 - 2¹ = 7330019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7329977 and 7330004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7330027) 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, 89350 + ... + 89431.

It is an arithmetic number, because the mean of its divisors is an integer number (1877211).

Almost surely, 2^7330021 is an apocalyptic number.

It is an amenable number.

7330021 is a deficient number, since it is larger than the sum of its proper divisors (178823).

7330021 is a wasteful number, since it uses less digits than its factorization.

7330021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178822.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 7330021 is about 2707.4011523969. The cubic root of 7330021 is about 194.2533004038.

Adding to 7330021 its reverse (1200337), we get a palindrome (8530358).

The spelling of 7330021 in words is "seven million, three hundred thirty thousand, twenty-one".