920345 has 16 divisors (see below), whose sum is σ = 1181952. Its totient is φ = 686400.

The previous prime is 920333. The next prime is 920357. The reversal of 920345 is 543029.

It is an interprime number because it is at equal distance from previous prime (920333) and next prime (920357).

It is not a de Polignac number, because 920345 - 2⁶ = 920281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 920345.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 920345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6020 + ... + 6170.

It is an arithmetic number, because the mean of its divisors is an integer number (73872).

2⁹²⁰³⁴⁵ is an apocalyptic number.

It is an amenable number.

920345 is a deficient number, since it is larger than the sum of its proper divisors (261607).

920345 is a wasteful number, since it uses less digits than its factorization.

920345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 920345 is about 959.3461314875. The cubic root of 920345 is about 97.2710384629.

The spelling of 920345 in words is "nine hundred twenty thousand, three hundred forty-five".