47665983 has 8 divisors (see below), whose sum is σ = 63618688. Its totient is φ = 31745304.

The previous prime is 47665979. The next prime is 47665991. The reversal of 47665983 is 38956674.

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

It is not a de Polignac number, because 47665983 - 2² = 47665979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47665963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4285 + ... + 10662.

It is an arithmetic number, because the mean of its divisors is an integer number (7952336).

Almost surely, 2^47665983 is an apocalyptic number.

47665983 is a deficient number, since it is larger than the sum of its proper divisors (15952705).

47665983 is a wasteful number, since it uses less digits than its factorization.

47665983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16013.

The product of its digits is 1088640, while the sum is 48.

The square root of 47665983 is about 6904.0555472852. The cubic root of 47665983 is about 362.5791706586.

The spelling of 47665983 in words is "forty-seven million, six hundred sixty-five thousand, nine hundred eighty-three".