47007666 has 24 divisors (see below), whose sum is σ = 105363180. Its totient is φ = 15128736.

The previous prime is 47007641. The next prime is 47007671. The reversal of 47007666 is 66670074.

It can be written as a sum of positive squares in 2 ways, for example, as 46991025 + 16641 = 6855^2 + 129^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47007666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44505 + ... + 45548.

Almost surely, 2^47007666 is an apocalyptic number.

47007666 is an abundant number, since it is smaller than the sum of its proper divisors (58355514).

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

47007666 is a wasteful number, since it uses less digits than its factorization.

47007666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90090 (or 90087 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 47007666 is about 6856.2136781171. The cubic root of 47007666 is about 360.9022276995.

The spelling of 47007666 in words is "forty-seven million, seven thousand, six hundred sixty-six".