873428765 has 16 divisors (see below), whose sum is σ = 1203577920. Its totient is φ = 601787520.

The previous prime is 873428753. The next prime is 873428779. The reversal of 873428765 is 567824378.

It is not a de Polignac number, because 873428765 - 2⁸ = 873428509 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 416864 + ... + 418953.

It is an arithmetic number, because the mean of its divisors is an integer number (75223620).

Almost surely, 2^873428765 is an apocalyptic number.

It is an amenable number.

873428765 is a deficient number, since it is larger than the sum of its proper divisors (330149155).

873428765 is a wasteful number, since it uses less digits than its factorization.

873428765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835852.

The product of its digits is 2257920, while the sum is 50.

The square root of 873428765 is about 29553.8282630187. The cubic root of 873428765 is about 955.8927408507.

The spelling of 873428765 in words is "eight hundred seventy-three million, four hundred twenty-eight thousand, seven hundred sixty-five".