47666494 has 4 divisors (see below), whose sum is σ = 71499744. Its totient is φ = 23833246.

The previous prime is 47666491. The next prime is 47666501. The reversal of 47666494 is 49466674.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47666491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11916622 + ... + 11916625.

It is an arithmetic number, because the mean of its divisors is an integer number (17874936).

Almost surely, 2^47666494 is an apocalyptic number.

47666494 is a deficient number, since it is larger than the sum of its proper divisors (23833250).

47666494 is a wasteful number, since it uses less digits than its factorization.

47666494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23833249.

The product of its digits is 870912, while the sum is 46.

The square root of 47666494 is about 6904.0925544202. The cubic root of 47666494 is about 362.5804663226.

The spelling of 47666494 in words is "forty-seven million, six hundred sixty-six thousand, four hundred ninety-four".