899889405 has 8 divisors (see below), whose sum is σ = 1439823072. Its totient is φ = 479941008.

The previous prime is 899889391. The next prime is 899889427. The reversal of 899889405 is 504988998.

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

It is not a de Polignac number, because 899889405 - 2⁹ = 899888893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29996299 + ... + 29996328.

It is an arithmetic number, because the mean of its divisors is an integer number (179977884).

Almost surely, 2^899889405 is an apocalyptic number.

It is an amenable number.

899889405 is a deficient number, since it is larger than the sum of its proper divisors (539933667).

899889405 is a wasteful number, since it uses less digits than its factorization.

899889405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59992635.

The product of its (nonzero) digits is 7464960, while the sum is 60.

The square root of 899889405 is about 29998.1566933703. The cubic root of 899889405 is about 965.4498354676.

The spelling of 899889405 in words is "eight hundred ninety-nine million, eight hundred eighty-nine thousand, four hundred five".