920305097 has 2 divisors, whose sum is σ = 920305098. Its totient is φ = 920305096.

The previous prime is 920305019. The next prime is 920305171. The reversal of 920305097 is 790503029.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 665072521 + 255232576 = 25789^2 + 15976^2 .

It is an emirp because it is prime and its reverse (790503029) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 920305097 - 2²⁶ = 853196233 is a prime.

It is a super-2 number, since 2×920305097² = 1693922943128358818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (920305007) 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 as a sum of consecutive naturals, namely, 460152548 + 460152549.

It is an arithmetic number, because the mean of its divisors is an integer number (460152549).

Almost surely, 2^920305097 is an apocalyptic number.

It is an amenable number.

920305097 is a deficient number, since it is larger than the sum of its proper divisors (1).

920305097 is an equidigital number, since it uses as much as digits as its factorization.

920305097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 920305097 is about 30336.5307344133. The cubic root of 920305097 is about 972.6963266310.

The spelling of 920305097 in words is "nine hundred twenty million, three hundred five thousand, ninety-seven".