9920233 has 4 divisors (see below), whose sum is σ = 10262340. Its totient is φ = 9578128.

The previous prime is 9920219. The next prime is 9920249. The reversal of 9920233 is 3320299.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1671849 + 8248384 = 1293^2 + 2872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9920233 is a prime.

It is a super-2 number, since 2×9920233² = 196822045548578, which contains 22 as substring.

It is a Duffinian number.

9920233 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9920203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171010 + ... + 171067.

It is an arithmetic number, because the mean of its divisors is an integer number (2565585).

Almost surely, 2^9920233 is an apocalyptic number.

It is an amenable number.

9920233 is a deficient number, since it is larger than the sum of its proper divisors (342107).

9920233 is a wasteful number, since it uses less digits than its factorization.

9920233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342106.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 9920233 is about 3149.6401381745. The cubic root of 9920233 is about 214.8690964463.

It can be divided in two parts, 99202 and 33, that added together give a triangular number (99235 = T₄₄₅).

The spelling of 9920233 in words is "nine million, nine hundred twenty thousand, two hundred thirty-three".