899649504 has 120 divisors (see below), whose sum is σ = 2849477400. Its totient is φ = 276804864.

The previous prime is 899649497. The next prime is 899649529. The reversal of 899649504 is 405946998.

899649504 is a `hidden beast` number, since 8 + 9 + 96 + 49 + 504 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20347 + ... + 47045.

It is an arithmetic number, because the mean of its divisors is an integer number (23745645).

Almost surely, 2^899649504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899649504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1424738700).

899649504 is an abundant number, since it is smaller than the sum of its proper divisors (1949827896).

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

899649504 is a wasteful number, since it uses less digits than its factorization.

899649504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26734 (or 26717 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 899649504 is about 29994.1578311511. The cubic root of 899649504 is about 965.3640349368.

The spelling of 899649504 in words is "eight hundred ninety-nine million, six hundred forty-nine thousand, five hundred four".