899448819 has 8 divisors (see below), whose sum is σ = 1199953920. Its totient is φ = 599288136.

The previous prime is 899448811. The next prime is 899448821. The reversal of 899448819 is 918844998.

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

It is not a de Polignac number, because 899448819 - 2³ = 899448811 is a prime.

It is a super-2 number, since 2×899448819² = 1618016356000989522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (899448811) 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, 79947 + ... + 90500.

It is an arithmetic number, because the mean of its divisors is an integer number (149994240).

Almost surely, 2^899448819 is an apocalyptic number.

899448819 is a deficient number, since it is larger than the sum of its proper divisors (300505101).

899448819 is a wasteful number, since it uses less digits than its factorization.

899448819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172209.

The product of its digits is 5971968, while the sum is 60.

The square root of 899448819 is about 29990.8122430854. The cubic root of 899448819 is about 965.2922482808.

The spelling of 899448819 in words is "eight hundred ninety-nine million, four hundred forty-eight thousand, eight hundred nineteen".