47239888 has 20 divisors (see below), whose sum is σ = 93476160. Its totient is φ = 23117024.

The previous prime is 47239883. The next prime is 47239901. The reversal of 47239888 is 88893274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47239883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30658 + ... + 32161.

It is an arithmetic number, because the mean of its divisors is an integer number (4673808).

Almost surely, 2^47239888 is an apocalyptic number.

It is an amenable number.

47239888 is a deficient number, since it is larger than the sum of its proper divisors (46236272).

47239888 is a wasteful number, since it uses less digits than its factorization.

47239888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62874 (or 62868 counting only the distinct ones).

The product of its digits is 774144, while the sum is 49.

The square root of 47239888 is about 6873.1279633075. The cubic root of 47239888 is about 361.4955479889.

The spelling of 47239888 in words is "forty-seven million, two hundred thirty-nine thousand, eight hundred eighty-eight".