47825778 has 64 divisors (see below), whose sum is σ = 128443392. Its totient is φ = 11465280.

The previous prime is 47825773. The next prime is 47825801. The reversal of 47825778 is 87752874.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (47825773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2025 + ... + 9987.

It is an arithmetic number, because the mean of its divisors is an integer number (2006928).

Almost surely, 2^47825778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47825778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64221696).

47825778 is an abundant number, since it is smaller than the sum of its proper divisors (80617614).

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

47825778 is a wasteful number, since it uses less digits than its factorization.

47825778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7999.

The product of its digits is 878080, while the sum is 48.

The square root of 47825778 is about 6915.6184105256. The cubic root of 47825778 is about 362.9838877563.

The spelling of 47825778 in words is "forty-seven million, eight hundred twenty-five thousand, seven hundred seventy-eight".