920947 has 2 divisors, whose sum is σ = 920948. Its totient is φ = 920946.

The previous prime is 920921. The next prime is 920951. The reversal of 920947 is 749029.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 920947 - 2¹¹ = 918899 is a prime.

It is not a weakly prime, because it can be changed into another prime (920957) 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, 460473 + 460474.

It is an arithmetic number, because the mean of its divisors is an integer number (460474).

2⁹²⁰⁹⁴⁷ is an apocalyptic number.

920947 is a deficient number, since it is larger than the sum of its proper divisors (1).

920947 is an equidigital number, since it uses as much as digits as its factorization.

920947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 920947 is about 959.6598355667. The cubic root of 920947 is about 97.2922422514.

The spelling of 920947 in words is "nine hundred twenty thousand, nine hundred forty-seven".