899717280 has 288 divisors, whose sum is σ = 3561812352. Its totient is φ = 186869760.

The previous prime is 899717263. The next prime is 899717297. The reversal of 899717280 is 82717998.

It is an interprime number because it is at equal distance from previous prime (899717263) and next prime (899717297).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 405454 + ... + 407666.

It is an arithmetic number, because the mean of its divisors is an integer number (12367404).

Almost surely, 2^899717280 is an apocalyptic number.

899717280 is a gapful number since it is divisible by the number (80) 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 899717280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1780906176).

899717280 is an abundant number, since it is smaller than the sum of its proper divisors (2662095072).

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

899717280 is a wasteful number, since it uses less digits than its factorization.

899717280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260 (or 2241 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 51.

The square root of 899717280 is about 29995.2876298928. The cubic root of 899717280 is about 965.3882765515.

The spelling of 899717280 in words is "eight hundred ninety-nine million, seven hundred seventeen thousand, two hundred eighty".