47666379 has 4 divisors (see below), whose sum is σ = 63555176. Its totient is φ = 31777584.

The previous prime is 47666369. The next prime is 47666387. The reversal of 47666379 is 97366674.

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

It is not a de Polignac number, because 47666379 - 2⁸ = 47666123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47666329) 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, 7944394 + ... + 7944399.

It is an arithmetic number, because the mean of its divisors is an integer number (15888794).

Almost surely, 2^47666379 is an apocalyptic number.

47666379 is a deficient number, since it is larger than the sum of its proper divisors (15888797).

47666379 is a wasteful number, since it uses less digits than its factorization.

47666379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15888796.

The product of its digits is 1143072, while the sum is 48.

The square root of 47666379 is about 6904.0842260216. The cubic root of 47666379 is about 362.5801747356.

The spelling of 47666379 in words is "forty-seven million, six hundred sixty-six thousand, three hundred seventy-nine".