1004655643 has 2 divisors, whose sum is σ = 1004655644. Its totient is φ = 1004655642.

The previous prime is 1004655577. The next prime is 1004655649. The reversal of 1004655643 is 3465564001.

It is a strong prime.

It is an emirp because it is prime and its reverse (3465564001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1004655643 - 2²⁵ = 971101211 is a prime.

It is a super-2 number, since 2×1004655643² = 2018665922023486898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1004655599 and 1004655608.

It is not a weakly prime, because it can be changed into another prime (1004655649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502327821 + 502327822.

It is an arithmetic number, because the mean of its divisors is an integer number (502327822).

Almost surely, 2^1004655643 is an apocalyptic number.

1004655643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004655643 is an equidigital number, since it uses as much as digits as its factorization.

1004655643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 1004655643 is about 31696.3033018048. The cubic root of 1004655643 is about 1001.5494788752.

The spelling of 1004655643 in words is "one billion, four million, six hundred fifty-five thousand, six hundred forty-three".