47412728 has 64 divisors (see below), whose sum is σ = 105325920. Its totient is φ = 19763200.

The previous prime is 47412713. The next prime is 47412731. The reversal of 47412728 is 82721474.

It is a happy number.

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, 60950 + ... + 61722.

Almost surely, 2^47412728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47412728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52662960).

47412728 is an abundant number, since it is smaller than the sum of its proper divisors (57913192).

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

47412728 is a wasteful number, since it uses less digits than its factorization.

47412728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848 (or 844 counting only the distinct ones).

The product of its digits is 25088, while the sum is 35.

The square root of 47412728 is about 6885.6900888727. The cubic root of 47412728 is about 361.9358880387.

The spelling of 47412728 in words is "forty-seven million, four hundred twelve thousand, seven hundred twenty-eight".