47739888 has 80 divisors (see below), whose sum is σ = 156616960. Its totient is φ = 13639104.

The previous prime is 47739871. The next prime is 47739911. The reversal of 47739888 is 88893774.

47739888 is a `hidden beast` number, since 477 + 3 + 98 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4870 + ... + 10917.

It is an arithmetic number, because the mean of its divisors is an integer number (1957712).

Almost surely, 2^47739888 is an apocalyptic number.

47739888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

47739888 is an abundant number, since it is smaller than the sum of its proper divisors (108877072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47739888 is a wasteful number, since it uses less digits than its factorization.

47739888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15811 (or 15799 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 47739888 is about 6909.4057631608. The cubic root of 47739888 is about 362.7664640893.

It can be divided in two parts, 477398 and 88, that multiplied together give a palindrome (42011024).

The spelling of 47739888 in words is "forty-seven million, seven hundred thirty-nine thousand, eight hundred eighty-eight".