99960012 has 18 divisors (see below), whose sum is σ = 252676788. Its totient is φ = 33319992.

The previous prime is 99960011. The next prime is 99960019. The reversal of 99960012 is 21006999.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2776667 = 99960012 / (9 + 9 + 9 + 6 + 0 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (99960011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1388298 + ... + 1388369.

Almost surely, 2^99960012 is an apocalyptic number.

It is an amenable number.

99960012 is an abundant number, since it is smaller than the sum of its proper divisors (152716776).

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

99960012 is a wasteful number, since it uses less digits than its factorization.

99960012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776677 (or 2776672 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 99960012 is about 9998.0004000800. Note that the first 3 decimals coincide. The cubic root of 99960012 is about 464.0970058279.

The spelling of 99960012 in words is "ninety-nine million, nine hundred sixty thousand, twelve".