869097641 has 4 divisors (see below), whose sum is σ = 869375232. Its totient is φ = 868820052.

The previous prime is 869097637. The next prime is 869097643. The reversal of 869097641 is 146790968.

869097641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 869097641 - 2² = 869097637 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 869097641.

It is not an unprimeable number, because it can be changed into a prime (869097643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134045 + ... + 140378.

It is an arithmetic number, because the mean of its divisors is an integer number (217343808).

Almost surely, 2^869097641 is an apocalyptic number.

It is an amenable number.

869097641 is a deficient number, since it is larger than the sum of its proper divisors (277591).

869097641 is a wasteful number, since it uses less digits than its factorization.

869097641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277590.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 869097641 is about 29480.4620214813. The cubic root of 869097641 is about 954.3101076277.

The spelling of 869097641 in words is "eight hundred sixty-nine million, ninety-seven thousand, six hundred forty-one".