47667899 has 4 divisors (see below), whose sum is σ = 47700336. Its totient is φ = 47635464.

The previous prime is 47667857. The next prime is 47667911. The reversal of 47667899 is 99876674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99876674 = 2 ⋅49938337.

It is a cyclic number.

It is not a de Polignac number, because 47667899 - 2²⁰ = 46619323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47669899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13904 + ... + 16989.

It is an arithmetic number, because the mean of its divisors is an integer number (11925084).

Almost surely, 2^47667899 is an apocalyptic number.

47667899 is a deficient number, since it is larger than the sum of its proper divisors (32437).

47667899 is a wasteful number, since it uses less digits than its factorization.

47667899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32436.

The product of its digits is 4572288, while the sum is 56.

The square root of 47667899 is about 6904.1943049135. The cubic root of 47667899 is about 362.5840287169.

The spelling of 47667899 in words is "forty-seven million, six hundred sixty-seven thousand, eight hundred ninety-nine".