47840766 has 8 divisors (see below), whose sum is σ = 95681544. Its totient is φ = 15946920.

The previous prime is 47840753. The next prime is 47840777. The reversal of 47840766 is 66704874.

It is a sphenic number, since it is the product of 3 distinct primes.

47840766 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3986725 + ... + 3986736.

It is an arithmetic number, because the mean of its divisors is an integer number (11960193).

Almost surely, 2^47840766 is an apocalyptic number.

47840766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47840766 is a wasteful number, since it uses less digits than its factorization.

47840766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7973466.

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

The square root of 47840766 is about 6916.7019597493. The cubic root of 47840766 is about 363.0218019978.

The spelling of 47840766 in words is "forty-seven million, eight hundred forty thousand, seven hundred sixty-six".