3847172004 has 192 divisors, whose sum is σ = 11321587200. Its totient is φ = 1120863744.

The previous prime is 3847171963. The next prime is 3847172023. The reversal of 3847172004 is 4002717483.

It is a happy number.

3847172004 is a `hidden beast` number, since 384 + 71 + 7 + 200 + 4 = 666.

It is a super-2 number, since 2×3847172004² = 29601464856722752032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3847172004.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3519282 + ... + 3520374.

It is an arithmetic number, because the mean of its divisors is an integer number (58966600).

Almost surely, 2^3847172004 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 3847172004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5660793600).

3847172004 is an abundant number, since it is smaller than the sum of its proper divisors (7474415196).

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

3847172004 is a wasteful number, since it uses less digits than its factorization.

3847172004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 3847172004 is about 62025.5754024096. The cubic root of 3847172004 is about 1566.9213614789.

Adding to 3847172004 its reverse (4002717483), we get a palindrome (7849889487).

The spelling of 3847172004 in words is "three billion, eight hundred forty-seven million, one hundred seventy-two thousand, four".