47819966 has 8 divisors (see below), whose sum is σ = 71819784. Its totient is φ = 23880040.

The previous prime is 47819957. The next prime is 47819969. The reversal of 47819966 is 66991874.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47819969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12920 + ... + 16203.

It is an arithmetic number, because the mean of its divisors is an integer number (8977473).

Almost surely, 2^47819966 is an apocalyptic number.

47819966 is a deficient number, since it is larger than the sum of its proper divisors (23999818).

47819966 is a wasteful number, since it uses less digits than its factorization.

47819966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29946.

The product of its digits is 653184, while the sum is 50.

The square root of 47819966 is about 6915.1981894954. The cubic root of 47819966 is about 362.9691833584.

The spelling of 47819966 in words is "forty-seven million, eight hundred nineteen thousand, nine hundred sixty-six".