899879904 has 648 divisors, whose sum is σ = 3576291264. Its totient is φ = 212889600.

The previous prime is 899879879. The next prime is 899879917. The reversal of 899879904 is 409978998.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 29028369 + ... + 29028399.

It is an arithmetic number, because the mean of its divisors is an integer number (5518968).

Almost surely, 2^899879904 is an apocalyptic number.

899879904 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899879904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1788145632).

899879904 is an abundant number, since it is smaller than the sum of its proper divisors (2676411360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

899879904 is a wasteful number, since it uses less digits than its factorization.

899879904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 63.

The square root of 899879904 is about 29997.9983332222. The cubic root of 899879904 is about 965.4464377275.

The spelling of 899879904 in words is "eight hundred ninety-nine million, eight hundred seventy-nine thousand, nine hundred four".