9021065 has 4 divisors (see below), whose sum is σ = 10825284. Its totient is φ = 7216848.

The previous prime is 9021043. The next prime is 9021071. The reversal of 9021065 is 5601209.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5601209 = 2017 ⋅2777.

It can be written as a sum of positive squares in 2 ways, for example, as 6901129 + 2119936 = 2627^2 + 1456^2 .

It is a cyclic number.

It is not a de Polignac number, because 9021065 - 2¹⁸ = 8758921 is a prime.

It is a super-2 number, since 2×9021065² = 162759227468450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9021065.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902102 + ... + 902111.

It is an arithmetic number, because the mean of its divisors is an integer number (2706321).

Almost surely, 2^9021065 is an apocalyptic number.

It is an amenable number.

9021065 is a deficient number, since it is larger than the sum of its proper divisors (1804219).

9021065 is a wasteful number, since it uses less digits than its factorization.

9021065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804218.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 9021065 is about 3003.5087814088. The cubic root of 9021065 is about 208.1705409154.

The spelling of 9021065 in words is "nine million, twenty-one thousand, sixty-five".