999999712 has 12 divisors (see below), whose sum is σ = 1968749496. Its totient is φ = 499999840.

The previous prime is 999999677. The next prime is 999999733. The reversal of 999999712 is 217999999.

999999712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15624964 + ... + 15625027.

It is an arithmetic number, because the mean of its divisors is an integer number (164062458).

Almost surely, 2^999999712 is an apocalyptic number.

It is an amenable number.

999999712 is a deficient number, since it is larger than the sum of its proper divisors (968749784).

999999712 is a wasteful number, since it uses less digits than its factorization.

999999712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31250001 (or 31249993 counting only the distinct ones).

The product of its digits is 7440174, while the sum is 64.

The square root of 999999712 is about 31622.7720480036. The cubic root of 999999712 is about 999.9999040000. Note that the first 4 decimals are identical.

The spelling of 999999712 in words is "nine hundred ninety-nine million, nine hundred ninety-nine thousand, seven hundred twelve".