920305093 has 4 divisors (see below), whose sum is σ = 921728160. Its totient is φ = 918882028.

The previous prime is 920305019. The next prime is 920305097. The reversal of 920305093 is 390503029.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920305093 is a prime.

It is a super-2 number, since 2×920305093² = 1693922928403477298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920305097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710563 + ... + 711856.

It is an arithmetic number, because the mean of its divisors is an integer number (230432040).

Almost surely, 2^920305093 is an apocalyptic number.

It is an amenable number.

920305093 is a deficient number, since it is larger than the sum of its proper divisors (1423067).

920305093 is a wasteful number, since it uses less digits than its factorization.

920305093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423066.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 920305093 is about 30336.5306684861. The cubic root of 920305093 is about 972.6963252217.

The spelling of 920305093 in words is "nine hundred twenty million, three hundred five thousand, ninety-three".