920057863 has 2 divisors, whose sum is σ = 920057864. Its totient is φ = 920057862.

The previous prime is 920057851. The next prime is 920057911. The reversal of 920057863 is 368750029.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920057863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920057563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460028931 + 460028932.

It is an arithmetic number, because the mean of its divisors is an integer number (460028932).

Almost surely, 2^920057863 is an apocalyptic number.

920057863 is a deficient number, since it is larger than the sum of its proper divisors (1).

920057863 is an equidigital number, since it uses as much as digits as its factorization.

920057863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 920057863 is about 30332.4556045171. The cubic root of 920057863 is about 972.6092159752.

The spelling of 920057863 in words is "nine hundred twenty million, fifty-seven thousand, eight hundred sixty-three".