1023935489 has 2 divisors, whose sum is σ = 1023935490. Its totient is φ = 1023935488.

The previous prime is 1023935411. The next prime is 1023935503. The reversal of 1023935489 is 9845393201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 778856464 + 245079025 = 27908^2 + 15655^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023935489 - 2²⁰ = 1022886913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1023932489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511967744 + 511967745.

It is an arithmetic number, because the mean of its divisors is an integer number (511967745).

Almost surely, 2^1023935489 is an apocalyptic number.

It is an amenable number.

1023935489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023935489 is an equidigital number, since it uses as much as digits as its factorization.

1023935489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 1023935489 is about 31998.9919997490. The cubic root of 1023935489 is about 1007.9156731259.

The spelling of 1023935489 in words is "one billion, twenty-three million, nine hundred thirty-five thousand, four hundred eighty-nine".