47666666 has 8 divisors (see below), whose sum is σ = 71534784. Its totient is φ = 23821740.

The previous prime is 47666639. The next prime is 47666699. The reversal of 47666666 is 66666674.

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

It is a super-2 number, since 2×47666666² = 4544222095111112, which contains 22 as substring.

47666666 is a modest number, since divided by 6666 gives 4766 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 47666666.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881 + ... + 9803.

It is an arithmetic number, because the mean of its divisors is an integer number (8941848).

Almost surely, 2^47666666 is an apocalyptic number.

47666666 is a deficient number, since it is larger than the sum of its proper divisors (23868118).

47666666 is a wasteful number, since it uses less digits than its factorization.

47666666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11596.

The product of its digits is 1306368, while the sum is 47.

The square root of 47666666 is about 6904.1050107889. The cubic root of 47666666 is about 362.5809024344.

The spelling of 47666666 in words is "forty-seven million, six hundred sixty-six thousand, six hundred sixty-six".