869952819 has 8 divisors (see below), whose sum is σ = 1174620160. Its totient is φ = 572627016.

The previous prime is 869952803. The next prime is 869952821. The reversal of 869952819 is 918259968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 869952819 - 2⁴ = 869952803 is a prime.

It is a super-2 number, since 2×869952819² = 1513635814572093522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869952859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1835107 + ... + 1835580.

It is an arithmetic number, because the mean of its divisors is an integer number (146827520).

Almost surely, 2^869952819 is an apocalyptic number.

869952819 is a deficient number, since it is larger than the sum of its proper divisors (304667341).

869952819 is a wasteful number, since it uses less digits than its factorization.

869952819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670769.

The product of its digits is 2799360, while the sum is 57.

The square root of 869952819 is about 29494.9626038075. The cubic root of 869952819 is about 954.6230135809.

The spelling of 869952819 in words is "eight hundred sixty-nine million, nine hundred fifty-two thousand, eight hundred nineteen".