920039 has 2 divisors, whose sum is σ = 920040. Its totient is φ = 920038.

The previous prime is 920021. The next prime is 920053. The reversal of 920039 is 930029.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920039 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 919996 and 920023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920539) 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, 460019 + 460020.

It is an arithmetic number, because the mean of its divisors is an integer number (460020).

2⁹²⁰⁰³⁹ is an apocalyptic number.

920039 is a deficient number, since it is larger than the sum of its proper divisors (1).

920039 is an equidigital number, since it uses as much as digits as its factorization.

920039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 920039 is about 959.1866346025. The cubic root of 920039 is about 97.2602569128.

The spelling of 920039 in words is "nine hundred twenty thousand, thirty-nine".