920807 has 2 divisors, whose sum is σ = 920808. Its totient is φ = 920806.

The previous prime is 920791. The next prime is 920827. The reversal of 920807 is 708029.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 920807 - 2⁴ = 920791 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

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 920807.

It is not a weakly prime, because it can be changed into another prime (920827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460403 + 460404.

It is an arithmetic number, because the mean of its divisors is an integer number (460404).

2⁹²⁰⁸⁰⁷ is an apocalyptic number.

920807 is a deficient number, since it is larger than the sum of its proper divisors (1).

920807 is an equidigital number, since it uses as much as digits as its factorization.

920807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 920807 is about 959.5868902814. The cubic root of 920807 is about 97.2873119626.

The spelling of 920807 in words is "nine hundred twenty thousand, eight hundred seven".