869043629 has 4 divisors (see below), whose sum is σ = 869373120. Its totient is φ = 868714140.

The previous prime is 869043607. The next prime is 869043647. The reversal of 869043629 is 926340968.

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 869043629 - 2¹² = 869039533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869043649) 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, 160757 + ... + 166074.

It is an arithmetic number, because the mean of its divisors is an integer number (217343280).

Almost surely, 2^869043629 is an apocalyptic number.

It is an amenable number.

869043629 is a deficient number, since it is larger than the sum of its proper divisors (329491).

869043629 is a wasteful number, since it uses less digits than its factorization.

869043629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329490.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 869043629 is about 29479.5459429076. The cubic root of 869043629 is about 954.2903379789.

The spelling of 869043629 in words is "eight hundred sixty-nine million, forty-three thousand, six hundred twenty-nine".