9020971 has 4 divisors (see below), whose sum is σ = 9191232. Its totient is φ = 8850712.

The previous prime is 9020941. The next prime is 9020981. The reversal of 9020971 is 1790209.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9020971 - 2²³ = 632363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9020941) 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, 85051 + ... + 85156.

It is an arithmetic number, because the mean of its divisors is an integer number (2297808).

Almost surely, 2^9020971 is an apocalyptic number.

9020971 is a deficient number, since it is larger than the sum of its proper divisors (170261).

9020971 is a wasteful number, since it uses less digits than its factorization.

9020971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170260.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 9020971 is about 3003.4931330036. The cubic root of 9020971 is about 208.1698178634.

The spelling of 9020971 in words is "nine million, twenty thousand, nine hundred seventy-one".