999086634 has 96 divisors (see below), whose sum is σ = 2821029120. Its totient is φ = 247988736.

The previous prime is 999086629. The next prime is 999086657. The reversal of 999086634 is 436680999.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9907 + ... + 45785.

It is an arithmetic number, because the mean of its divisors is an integer number (29385720).

Almost surely, 2^999086634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999086634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410514560).

999086634 is an abundant number, since it is smaller than the sum of its proper divisors (1821942486).

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

999086634 is a wasteful number, since it uses less digits than its factorization.

999086634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35924 (or 35921 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The square root of 999086634 is about 31608.3317180771. The cubic root of 999086634 is about 999.6954519266.

The spelling of 999086634 in words is "nine hundred ninety-nine million, eighty-six thousand, six hundred thirty-four".