99999712 has 24 divisors (see below), whose sum is σ = 208456416. Its totient is φ = 47058432.

The previous prime is 99999703. The next prime is 99999721. The reversal of 99999712 is 21799999.

It is an interprime number because it is at equal distance from previous prime (99999703) and next prime (99999721).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91368 + ... + 92455.

It is an arithmetic number, because the mean of its divisors is an integer number (8685684).

Almost surely, 2^99999712 is an apocalyptic number.

It is an amenable number.

99999712 is an abundant number, since it is smaller than the sum of its proper divisors (108456704).

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

99999712 is a wasteful number, since it uses less digits than its factorization.

99999712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183850 (or 183842 counting only the distinct ones).

The product of its digits is 826686, while the sum is 55.

The square root of 99999712 is about 9999.9855999896. The cubic root of 99999712 is about 464.1584377683.

The spelling of 99999712 in words is "ninety-nine million, nine hundred ninety-nine thousand, seven hundred twelve".