920730617 has 2 divisors, whose sum is σ = 920730618. Its totient is φ = 920730616.

The previous prime is 920730581. The next prime is 920730623. The reversal of 920730617 is 716037029.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 840072256 + 80658361 = 28984^2 + 8981^2 .

It is a cyclic number.

It is not a de Polignac number, because 920730617 - 2¹⁴ = 920714233 is a prime.

It is not a weakly prime, because it can be changed into another prime (920730637) 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, 460365308 + 460365309.

It is an arithmetic number, because the mean of its divisors is an integer number (460365309).

Almost surely, 2^920730617 is an apocalyptic number.

It is an amenable number.

920730617 is a deficient number, since it is larger than the sum of its proper divisors (1).

920730617 is an equidigital number, since it uses as much as digits as its factorization.

920730617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 920730617 is about 30343.5432505830. The cubic root of 920730617 is about 972.8462182147.

The spelling of 920730617 in words is "nine hundred twenty million, seven hundred thirty thousand, six hundred seventeen".