47323812 has 12 divisors (see below), whose sum is σ = 110422256. Its totient is φ = 15774600.

The previous prime is 47323789. The next prime is 47323817. The reversal of 47323812 is 21832374.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×47323812² = 4479086364422688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47323812.

It is not an unprimeable number, because it can be changed into a prime (47323817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1971814 + ... + 1971837.

Almost surely, 2^47323812 is an apocalyptic number.

It is an amenable number.

47323812 is an abundant number, since it is smaller than the sum of its proper divisors (63098444).

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

47323812 is a wasteful number, since it uses less digits than its factorization.

47323812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943658 (or 3943656 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 47323812 is about 6879.2304802209. The cubic root of 47323812 is about 361.7094929241.

The spelling of 47323812 in words is "forty-seven million, three hundred twenty-three thousand, eight hundred twelve".