9280213 has 4 divisors (see below), whose sum is σ = 9286380. Its totient is φ = 9274048.

The previous prime is 9280211. The next prime is 9280241. The reversal of 9280213 is 3120829.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3120829 = 1373 ⋅2273.

It can be written as a sum of positive squares in 2 ways, for example, as 2634129 + 6646084 = 1623^2 + 2578^2 .

It is a cyclic number.

It is not a de Polignac number, because 9280213 - 2¹ = 9280211 is a prime.

It is a super-2 number, since 2×9280213² = 172244706650738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9280211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831 + ... + 4387.

It is an arithmetic number, because the mean of its divisors is an integer number (2321595).

Almost surely, 2^9280213 is an apocalyptic number.

It is an amenable number.

9280213 is a deficient number, since it is larger than the sum of its proper divisors (6167).

9280213 is a wasteful number, since it uses less digits than its factorization.

9280213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6166.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 9280213 is about 3046.3442024827. The cubic root of 9280213 is about 210.1451226665.

The spelling of 9280213 in words is "nine million, two hundred eighty thousand, two hundred thirteen".