9020813 has 4 divisors (see below), whose sum is σ = 9155520. Its totient is φ = 8886108.

The previous prime is 9020797. The next prime is 9020819. The reversal of 9020813 is 3180209.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9020813 - 2⁴ = 9020797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9020819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67253 + ... + 67386.

It is an arithmetic number, because the mean of its divisors is an integer number (2288880).

Almost surely, 2^9020813 is an apocalyptic number.

It is an amenable number.

9020813 is a deficient number, since it is larger than the sum of its proper divisors (134707).

9020813 is a wasteful number, since it uses less digits than its factorization.

9020813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134706.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 9020813 is about 3003.4668301814. The cubic root of 9020813 is about 208.1686025092.

The spelling of 9020813 in words is "nine million, twenty thousand, eight hundred thirteen".