869452819 has 8 divisors (see below), whose sum is σ = 894339072. Its totient is φ = 844778760.

The previous prime is 869452783. The next prime is 869452873. The reversal of 869452819 is 918254968.

869452819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 869452819 - 2¹³ = 869444627 is a prime.

It is a super-2 number, since 2×869452819² = 1511896408934093522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869452889) 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, 44719 + ... + 61144.

It is an arithmetic number, because the mean of its divisors is an integer number (111792384).

Almost surely, 2^869452819 is an apocalyptic number.

869452819 is a deficient number, since it is larger than the sum of its proper divisors (24886253).

869452819 is a wasteful number, since it uses less digits than its factorization.

869452819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106097.

The product of its digits is 1244160, while the sum is 52.

The square root of 869452819 is about 29486.4853619417. The cubic root of 869452819 is about 954.4400906417.

The spelling of 869452819 in words is "eight hundred sixty-nine million, four hundred fifty-two thousand, eight hundred nineteen".