47319666 has 16 divisors (see below), whose sum is σ = 94893600. Its totient is φ = 15730848.

The previous prime is 47319659. The next prime is 47319667. The reversal of 47319666 is 66691374.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47319667) 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 7 ways as a sum of consecutive naturals, for example, 8131 + ... + 12678.

It is an arithmetic number, because the mean of its divisors is an integer number (5930850).

Almost surely, 2^47319666 is an apocalyptic number.

47319666 is an abundant number, since it is smaller than the sum of its proper divisors (47573934).

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

47319666 is a wasteful number, since it uses less digits than its factorization.

47319666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21193.

The product of its digits is 163296, while the sum is 42.

The square root of 47319666 is about 6878.9291317763. The cubic root of 47319666 is about 361.6989295925.

The spelling of 47319666 in words is "forty-seven million, three hundred nineteen thousand, six hundred sixty-six".