47866667 has 4 divisors (see below), whose sum is σ = 48044880. Its totient is φ = 47688456.

The previous prime is 47866661. The next prime is 47866691. The reversal of 47866667 is 76666874.

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

It is a cyclic number.

It is not a de Polignac number, because 47866667 - 2¹⁸ = 47604523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47866661) 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, 88703 + ... + 89240.

It is an arithmetic number, because the mean of its divisors is an integer number (12011220).

Almost surely, 2^47866667 is an apocalyptic number.

47866667 is a deficient number, since it is larger than the sum of its proper divisors (178213).

47866667 is a wasteful number, since it uses less digits than its factorization.

47866667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178212.

The product of its digits is 2032128, while the sum is 50.

The square root of 47866667 is about 6918.5740582869. The cubic root of 47866667 is about 363.0873035364.

The spelling of 47866667 in words is "forty-seven million, eight hundred sixty-six thousand, six hundred sixty-seven".