47169872 has 30 divisors (see below), whose sum is σ = 95555082. Its totient is φ = 22555456.

The previous prime is 47169853. The next prime is 47169907. The reversal of 47169872 is 27896174.

It can be written as a sum of positive squares in only one way, i.e., 28472896 + 18696976 = 5336^2 + 4324^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5678 + ... + 11250.

Almost surely, 2^47169872 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 47169872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47777541).

47169872 is an abundant number, since it is smaller than the sum of its proper divisors (48385210).

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

47169872 is a wasteful number, since it uses less digits than its factorization.

47169872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5627 (or 5598 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 47169872 is about 6868.0326149488. The cubic root of 47169872 is about 361.3168643369.

The spelling of 47169872 in words is "forty-seven million, one hundred sixty-nine thousand, eight hundred seventy-two".