920539 has 2 divisors, whose sum is σ = 920540. Its totient is φ = 920538.

The previous prime is 920519. The next prime is 920561. The reversal of 920539 is 935029.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 920539 - 2⁷ = 920411 is a prime.

It is a Chen prime.

It is equal to p₇₂₇₇₅ and since 920539 and 72775 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (920509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460269 + 460270.

It is an arithmetic number, because the mean of its divisors is an integer number (460270).

2⁹²⁰⁵³⁹ is an apocalyptic number.

920539 is a deficient number, since it is larger than the sum of its proper divisors (1).

920539 is an equidigital number, since it uses as much as digits as its factorization.

920539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 920539 is about 959.4472366941. The cubic root of 920539 is about 97.2778725869.

The spelling of 920539 in words is "nine hundred twenty thousand, five hundred thirty-nine".