920243 has 4 divisors (see below), whose sum is σ = 941688. Its totient is φ = 898800.

The previous prime is 920233. The next prime is 920263. The reversal of 920243 is 342029.

920243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342029 = 571 ⋅599.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920243 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920203) 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, 10658 + ... + 10743.

It is an arithmetic number, because the mean of its divisors is an integer number (235422).

2⁹²⁰²⁴³ is an apocalyptic number.

920243 is a deficient number, since it is larger than the sum of its proper divisors (21445).

920243 is a wasteful number, since it uses less digits than its factorization.

920243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21444.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 920243 is about 959.2929688057. The cubic root of 920243 is about 97.2674448784.

The spelling of 920243 in words is "nine hundred twenty thousand, two hundred forty-three".