899460870 has 128 divisors (see below), whose sum is σ = 2757307392. Its totient is φ = 182323200.

The previous prime is 899460869. The next prime is 899460907. The reversal of 899460870 is 78064998.

It is a happy number.

It is a super-2 number, since 2×899460870² = 1618059713322313800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89962 + ... + 99458.

It is an arithmetic number, because the mean of its divisors is an integer number (21541464).

Almost surely, 2^899460870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899460870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378653696).

899460870 is an abundant number, since it is smaller than the sum of its proper divisors (1857846522).

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

899460870 is a wasteful number, since it uses less digits than its factorization.

899460870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9566.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 899460870 is about 29991.0131539433. The cubic root of 899460870 is about 965.2965593228.

The spelling of 899460870 in words is "eight hundred ninety-nine million, four hundred sixty thousand, eight hundred seventy".