47725830 has 48 divisors (see below), whose sum is σ = 125601840. Its totient is φ = 12571584.

The previous prime is 47725813. The next prime is 47725837. The reversal of 47725830 is 3852774.

47725830 is a `hidden beast` number, since 4 + 7 + 72 + 583 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47725837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4276 + ... + 10664.

It is an arithmetic number, because the mean of its divisors is an integer number (2616705).

Almost surely, 2^47725830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47725830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62800920).

47725830 is an abundant number, since it is smaller than the sum of its proper divisors (77876010).

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

47725830 is a wasteful number, since it uses less digits than its factorization.

47725830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485 (or 6482 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 47725830 is about 6908.3883793545. The cubic root of 47725830 is about 362.7308525575.

The spelling of 47725830 in words is "forty-seven million, seven hundred twenty-five thousand, eight hundred thirty".