999710712 has 432 divisors, whose sum is σ = 3720946320. Its totient is φ = 237219840.

The previous prime is 999710689. The next prime is 999710713. The reversal of 999710712 is 217017999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999710713) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 10306248 + ... + 10306344.

Almost surely, 2^999710712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999710712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1860473160).

999710712 is an abundant number, since it is smaller than the sum of its proper divisors (2721235608).

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

999710712 is a wasteful number, since it uses less digits than its factorization.

999710712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 45.

The square root of 999710712 is about 31618.2022259331. The cubic root of 999710712 is about 999.9035613666.

The spelling of 999710712 in words is "nine hundred ninety-nine million, seven hundred ten thousand, seven hundred twelve".