99616212 has 18 divisors (see below), whose sum is σ = 251807738. Its totient is φ = 33205392.

The previous prime is 99616211. The next prime is 99616217. The reversal of 99616212 is 21261699.

It can be written as a sum of positive squares in only one way, i.e., 78216336 + 21399876 = 8844^2 + 4626^2 .

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

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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: 2767117 = 99616212 / (9 + 9 + 6 + 1 + 6 + 2 + 1 + 2).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99616211) 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, 1383523 + ... + 1383594.

Almost surely, 2^99616212 is an apocalyptic number.

It is an amenable number.

99616212 is an abundant number, since it is smaller than the sum of its proper divisors (152191526).

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

99616212 is a wasteful number, since it uses less digits than its factorization.

99616212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767127 (or 2767122 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 99616212 is about 9980.7921529305. The cubic root of 99616212 is about 463.5643267339.

The spelling of 99616212 in words is "ninety-nine million, six hundred sixteen thousand, two hundred twelve".