47666346 has 64 divisors (see below), whose sum is σ = 119175168. Its totient is φ = 12374208.

The previous prime is 47666329. The next prime is 47666369. The reversal of 47666346 is 64366674.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47666298 and 47666307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35931 + ... + 37233.

It is an arithmetic number, because the mean of its divisors is an integer number (1862112).

Almost surely, 2^47666346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47666346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59587584).

47666346 is an abundant number, since it is smaller than the sum of its proper divisors (71508822).

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

47666346 is a wasteful number, since it uses less digits than its factorization.

47666346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395.

The product of its digits is 435456, while the sum is 42.

The square root of 47666346 is about 6904.0818361314. The cubic root of 47666346 is about 362.5800910627.

The spelling of 47666346 in words is "forty-seven million, six hundred sixty-six thousand, three hundred forty-six".