920231 has 8 divisors (see below), whose sum is σ = 1005984. Its totient is φ = 836640.

The previous prime is 920219. The next prime is 920233. The reversal of 920231 is 132029.

920231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 920231 - 2⁶ = 920167 is a prime.

It is a super-2 number, since 2×920231² = 1693650186722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 920231.

It is not an unprimeable number, because it can be changed into a prime (920233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425 + ... + 1421.

It is an arithmetic number, because the mean of its divisors is an integer number (125748).

2⁹²⁰²³¹ is an apocalyptic number.

920231 is a deficient number, since it is larger than the sum of its proper divisors (85753).

920231 is a wasteful number, since it uses less digits than its factorization.

920231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 920231 is about 959.2867141788. The cubic root of 920231 is about 97.2670220863.

The spelling of 920231 in words is "nine hundred twenty thousand, two hundred thirty-one".