65047812 has 96 divisors (see below), whose sum is σ = 165957120. Its totient is φ = 19783680.

The previous prime is 65047799. The next prime is 65047817. The reversal of 65047812 is 21874056.

It is not an unprimeable number, because it can be changed into a prime (65047817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 670548 + ... + 670644.

It is an arithmetic number, because the mean of its divisors is an integer number (1728720).

Almost surely, 2^65047812 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 65047812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82978560).

65047812 is an abundant number, since it is smaller than the sum of its proper divisors (100909308).

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

65047812 is a wasteful number, since it uses less digits than its factorization.

65047812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 65047812 is about 8065.2223775913. Note that the first 3 decimals coincide. The cubic root of 65047812 is about 402.1711357688.

The spelling of 65047812 in words is "sixty-five million, forty-seven thousand, eight hundred twelve".