1023730817 has 2 divisors, whose sum is σ = 1023730818. Its totient is φ = 1023730816.

The previous prime is 1023730793. The next prime is 1023730819. The reversal of 1023730817 is 7180373201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 973377601 + 50353216 = 31199^2 + 7096^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023730817 - 2¹⁸ = 1023468673 is a prime.

Together with 1023730819, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1023730819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511865408 + 511865409.

It is an arithmetic number, because the mean of its divisors is an integer number (511865409).

Almost surely, 2^1023730817 is an apocalyptic number.

It is an amenable number.

1023730817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023730817 is an equidigital number, since it uses as much as digits as its factorization.

1023730817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 1023730817 is about 31995.7937391777. The cubic root of 1023730817 is about 1007.8485120383.

The spelling of 1023730817 in words is "one billion, twenty-three million, seven hundred thirty thousand, eight hundred seventeen".