920863 has 2 divisors, whose sum is σ = 920864. Its totient is φ = 920862.

The previous prime is 920849. The next prime is 920869. The reversal of 920863 is 368029.

It is a strong prime.

It is an emirp because it is prime and its reverse (368029) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920869) 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, 460431 + 460432.

It is an arithmetic number, because the mean of its divisors is an integer number (460432).

2⁹²⁰⁸⁶³ is an apocalyptic number.

920863 is a deficient number, since it is larger than the sum of its proper divisors (1).

920863 is an equidigital number, since it uses as much as digits as its factorization.

920863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 920863 is about 959.6160690610. The cubic root of 920863 is about 97.2892841381.

The spelling of 920863 in words is "nine hundred twenty thousand, eight hundred sixty-three".