920087 has 4 divisors (see below), whose sum is σ = 1051536. Its totient is φ = 788640.

The previous prime is 920053. The next prime is 920107. The reversal of 920087 is 780029.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 920087 - 2¹⁰ = 919063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65714 + ... + 65727.

It is an arithmetic number, because the mean of its divisors is an integer number (262884).

2⁹²⁰⁰⁸⁷ is an apocalyptic number.

920087 is a deficient number, since it is larger than the sum of its proper divisors (131449).

920087 is a wasteful number, since it uses less digits than its factorization.

920087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131448.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 920087 is about 959.2116554755. The cubic root of 920087 is about 97.2619482944.

The spelling of 920087 in words is "nine hundred twenty thousand, eighty-seven".