47066784 has 48 divisors (see below), whose sum is σ = 124030368. Its totient is φ = 15628032.

The previous prime is 47066783. The next prime is 47066813. The reversal of 47066784 is 48766074.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×47066784² = 4430564312205312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47066783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28674 + ... + 30270.

It is an arithmetic number, because the mean of its divisors is an integer number (2583966).

Almost surely, 2^47066784 is an apocalyptic number.

It is an amenable number.

47066784 is an abundant number, since it is smaller than the sum of its proper divisors (76963584).

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

47066784 is a wasteful number, since it uses less digits than its factorization.

47066784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 47066784 is about 6860.5235951784. The cubic root of 47066784 is about 361.0534575010.

The spelling of 47066784 in words is "forty-seven million, sixty-six thousand, seven hundred eighty-four".