873635023403 has 2 divisors, whose sum is σ = 873635023404. Its totient is φ = 873635023402.

The previous prime is 873635023399. The next prime is 873635023477. The reversal of 873635023403 is 304320536378.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 873635023403 - 2² = 873635023399 is a prime.

It is not a weakly prime, because it can be changed into another prime (873635020403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436817511701 + 436817511702.

It is an arithmetic number, because the mean of its divisors is an integer number (436817511702).

Almost surely, 2^873635023403 is an apocalyptic number.

873635023403 is a deficient number, since it is larger than the sum of its proper divisors (1).

873635023403 is an equidigital number, since it uses as much as digits as its factorization.

873635023403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 44.

The spelling of 873635023403 in words is "eight hundred seventy-three billion, six hundred thirty-five million, twenty-three thousand, four hundred three".