899625221 has 8 divisors (see below), whose sum is σ = 982533888. Its totient is φ = 816904000.

The previous prime is 899625187. The next prime is 899625241. The reversal of 899625221 is 122526998.

899625221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-899625221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899625241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36725 + ... + 56106.

It is an arithmetic number, because the mean of its divisors is an integer number (122816736).

Almost surely, 2^899625221 is an apocalyptic number.

It is an amenable number.

899625221 is a deficient number, since it is larger than the sum of its proper divisors (82908667).

899625221 is a wasteful number, since it uses less digits than its factorization.

899625221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93723.

The product of its digits is 155520, while the sum is 44.

The square root of 899625221 is about 29993.7530329234. The cubic root of 899625221 is about 965.3553492781.

The spelling of 899625221 in words is "eight hundred ninety-nine million, six hundred twenty-five thousand, two hundred twenty-one".