47788399 has 4 divisors (see below), whose sum is σ = 47807536. Its totient is φ = 47769264.

The previous prime is 47788381. The next prime is 47788421. The reversal of 47788399 is 99388774.

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 47788399 - 2⁷ = 47788271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47788099) 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, 5139 + ... + 11044.

It is an arithmetic number, because the mean of its divisors is an integer number (11951884).

Almost surely, 2^47788399 is an apocalyptic number.

47788399 is a deficient number, since it is larger than the sum of its proper divisors (19137).

47788399 is a wasteful number, since it uses less digits than its factorization.

47788399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19136.

The product of its digits is 3048192, while the sum is 55.

The square root of 47788399 is about 6912.9153763083. The cubic root of 47788399 is about 362.8892978260.

The spelling of 47788399 in words is "forty-seven million, seven hundred eighty-eight thousand, three hundred ninety-nine".