99947412 has 48 divisors (see below), whose sum is σ = 260904000. Its totient is φ = 33086880.

The previous prime is 99947401. The next prime is 99947413. The reversal of 99947412 is 21474999.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99947413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12987 + ... + 19197.

It is an arithmetic number, because the mean of its divisors is an integer number (5435500).

Almost surely, 2^99947412 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 99947412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130452000).

99947412 is an abundant number, since it is smaller than the sum of its proper divisors (160956588).

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

99947412 is a wasteful number, since it uses less digits than its factorization.

99947412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373 (or 6365 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 99947412 is about 9997.3702542219. The cubic root of 99947412 is about 464.0775051367.

The spelling of 99947412 in words is "ninety-nine million, nine hundred forty-seven thousand, four hundred twelve".