47655828 has 72 divisors (see below), whose sum is σ = 139164480. Its totient is φ = 13589760.

The previous prime is 47655761. The next prime is 47655833. The reversal of 47655828 is 82855674.

47655828 is a `hidden beast` number, since 4 + 7 + 65 + 582 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3193 + ... + 10271.

It is an arithmetic number, because the mean of its divisors is an integer number (1932840).

Almost surely, 2^47655828 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 47655828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69582240).

47655828 is an abundant number, since it is smaller than the sum of its proper divisors (91508652).

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

47655828 is a wasteful number, since it uses less digits than its factorization.

47655828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7117 (or 7112 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 47655828 is about 6903.3200708065. The cubic root of 47655828 is about 362.5534202684.

The spelling of 47655828 in words is "forty-seven million, six hundred fifty-five thousand, eight hundred twenty-eight".