47766018 has 8 divisors (see below), whose sum is σ = 95532048. Its totient is φ = 15922004.

The previous prime is 47766013. The next prime is 47766029. The reversal of 47766018 is 81066774.

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

47766018 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (47766011) 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, 3980496 + ... + 3980507.

It is an arithmetic number, because the mean of its divisors is an integer number (11941506).

Almost surely, 2^47766018 is an apocalyptic number.

47766018 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.

47766018 is a wasteful number, since it uses less digits than its factorization.

47766018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7961008.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 47766018 is about 6911.2964051616. The cubic root of 47766018 is about 362.8326376756.

The spelling of 47766018 in words is "forty-seven million, seven hundred sixty-six thousand, eighteen".