47805899 has 4 divisors (see below), whose sum is σ = 47831136. Its totient is φ = 47780664.

The previous prime is 47805859. The next prime is 47805911. The reversal of 47805899 is 99850874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99850874 = 2 ⋅49925437.

It is a cyclic number.

It is not a de Polignac number, because 47805899 - 2⁸ = 47805643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47805829) 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, 9524 + ... + 13649.

It is an arithmetic number, because the mean of its divisors is an integer number (11957784).

Almost surely, 2^47805899 is an apocalyptic number.

47805899 is a deficient number, since it is larger than the sum of its proper divisors (25237).

47805899 is a wasteful number, since it uses less digits than its factorization.

47805899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25236.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 47805899 is about 6914.1810071765. The cubic root of 47805899 is about 362.9335888242.

The spelling of 47805899 in words is "forty-seven million, eight hundred five thousand, eight hundred ninety-nine".