875220907 has 4 divisors (see below), whose sum is σ = 954786456. Its totient is φ = 795655360.

The previous prime is 875220893. The next prime is 875220917. The reversal of 875220907 is 709022578.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-875220907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 875220907.

It is not an unprimeable number, because it can be changed into a prime (875220917) 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 in 3 ways as a sum of consecutive naturals, for example, 39782758 + ... + 39782779.

It is an arithmetic number, because the mean of its divisors is an integer number (238696614).

Almost surely, 2^875220907 is an apocalyptic number.

875220907 is a deficient number, since it is larger than the sum of its proper divisors (79565549).

875220907 is a wasteful number, since it uses less digits than its factorization.

875220907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79565548.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 875220907 is about 29584.1326896700. The cubic root of 875220907 is about 956.5460760208.

The spelling of 875220907 in words is "eight hundred seventy-five million, two hundred twenty thousand, nine hundred seven".