1004234989 has 2 divisors, whose sum is σ = 1004234990. Its totient is φ = 1004234988.

The previous prime is 1004234977. The next prime is 1004235053. The reversal of 1004234989 is 9894324001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1003812489 + 422500 = 31683^2 + 650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004234989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1004234909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502117494 + 502117495.

It is an arithmetic number, because the mean of its divisors is an integer number (502117495).

Almost surely, 2^1004234989 is an apocalyptic number.

It is an amenable number.

1004234989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004234989 is an equidigital number, since it uses as much as digits as its factorization.

1004234989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1004234989 is about 31689.6669121024. Note that the first 3 decimals coincide. The cubic root of 1004234989 is about 1001.4096748830.

The spelling of 1004234989 in words is "one billion, four million, two hundred thirty-four thousand, nine hundred eighty-nine".