872785041 has 4 divisors (see below), whose sum is σ = 1163713392. Its totient is φ = 581856692.

The previous prime is 872785027. The next prime is 872785051. The reversal of 872785041 is 140587278.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-872785041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 872784984 and 872785002.

It is not an unprimeable number, because it can be changed into a prime (872785051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145464171 + ... + 145464176.

It is an arithmetic number, because the mean of its divisors is an integer number (290928348).

Almost surely, 2^872785041 is an apocalyptic number.

It is an amenable number.

872785041 is a deficient number, since it is larger than the sum of its proper divisors (290928351).

872785041 is a wasteful number, since it uses less digits than its factorization.

872785041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290928350.

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 872785041 is about 29542.9355514986. The cubic root of 872785041 is about 955.6578495986.

The spelling of 872785041 in words is "eight hundred seventy-two million, seven hundred eighty-five thousand, forty-one".