9621023 has 4 divisors (see below), whose sum is σ = 9628080. Its totient is φ = 9613968.

The previous prime is 9620993. The next prime is 9621043. The reversal of 9621023 is 3201269.

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: 3201269 = 73 ⋅43853.

It is a cyclic number.

It is not a de Polignac number, because 9621023 - 2¹² = 9616927 is a prime.

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 9621023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9621043) 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, 758 + ... + 4451.

It is an arithmetic number, because the mean of its divisors is an integer number (2407020).

Almost surely, 2^9621023 is an apocalyptic number.

9621023 is a deficient number, since it is larger than the sum of its proper divisors (7057).

9621023 is a wasteful number, since it uses less digits than its factorization.

9621023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7056.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 9621023 is about 3101.7773936890. Note that the first 3 decimals coincide. The cubic root of 9621023 is about 212.6867414983.

The spelling of 9621023 in words is "nine million, six hundred twenty-one thousand, twenty-three".