1004495993 has 2 divisors, whose sum is σ = 1004495994. Its totient is φ = 1004495992.

The previous prime is 1004495957. The next prime is 1004496011. The reversal of 1004495993 is 3995944001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 745672249 + 258823744 = 27307^2 + 16088^2 .

It is a cyclic number.

It is not a de Polignac number, because 1004495993 - 2⁶ = 1004495929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1004495923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502247996 + 502247997.

It is an arithmetic number, because the mean of its divisors is an integer number (502247997).

Almost surely, 2^1004495993 is an apocalyptic number.

It is an amenable number.

1004495993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004495993 is an equidigital number, since it uses as much as digits as its factorization.

1004495993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 1004495993 is about 31693.7847692572. The cubic root of 1004495993 is about 1001.4964239318.

The spelling of 1004495993 in words is "one billion, four million, four hundred ninety-five thousand, nine hundred ninety-three".