899317220 has 24 divisors (see below), whose sum is σ = 1890458808. Its totient is φ = 359366400.

The previous prime is 899317219. The next prime is 899317241. The reversal of 899317220 is 22713998.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 130142464 + 769174756 = 11408^2 + 27734^2 .

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, 1601 + ... + 42440.

It is an arithmetic number, because the mean of its divisors is an integer number (78769117).

Almost surely, 2^899317220 is an apocalyptic number.

It is an amenable number.

899317220 is an abundant number, since it is smaller than the sum of its proper divisors (991141588).

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

899317220 is a wasteful number, since it uses less digits than its factorization.

899317220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45071 (or 45069 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 899317220 is about 29988.6181742340. The cubic root of 899317220 is about 965.2451684515.

The spelling of 899317220 in words is "eight hundred ninety-nine million, three hundred seventeen thousand, two hundred twenty".