869438933 has 4 divisors (see below), whose sum is σ = 948478848. Its totient is φ = 790399020.

The previous prime is 869438923. The next prime is 869438951. The reversal of 869438933 is 339834968.

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 869438933 - 2⁸ = 869438677 is a prime.

It is a super-4 number, since 4×869438933⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869438923) 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, 39519941 + ... + 39519962.

It is an arithmetic number, because the mean of its divisors is an integer number (237119712).

Almost surely, 2^869438933 is an apocalyptic number.

It is an amenable number.

869438933 is a deficient number, since it is larger than the sum of its proper divisors (79039915).

869438933 is a wasteful number, since it uses less digits than its factorization.

869438933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79039914.

The product of its digits is 3359232, while the sum is 53.

The square root of 869438933 is about 29486.2498971978. The cubic root of 869438933 is about 954.4350095050.

The spelling of 869438933 in words is "eight hundred sixty-nine million, four hundred thirty-eight thousand, nine hundred thirty-three".