1023465889 has 2 divisors, whose sum is σ = 1023465890. Its totient is φ = 1023465888.

The previous prime is 1023465851. The next prime is 1023465901. The reversal of 1023465889 is 9885643201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 865536400 + 157929489 = 29420^2 + 12567^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023465889 - 2¹³ = 1023457697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1023465829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511732944 + 511732945.

It is an arithmetic number, because the mean of its divisors is an integer number (511732945).

Almost surely, 2^1023465889 is an apocalyptic number.

It is an amenable number.

1023465889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023465889 is an equidigital number, since it uses as much as digits as its factorization.

1023465889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 1023465889 is about 31991.6534271050. The cubic root of 1023465889 is about 1007.7615652478.

The spelling of 1023465889 in words is "one billion, twenty-three million, four hundred sixty-five thousand, eight hundred eighty-nine".