47011500 has 144 divisors (see below), whose sum is σ = 153543936. Its totient is φ = 12096000.

The previous prime is 47011499. The next prime is 47011501. The reversal of 47011500 is 511074.

It is an interprime number because it is at equal distance from previous prime (47011499) and next prime (47011501).

It is a super-4 number, since 4×47011500⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (47011501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 139332 + ... + 139668.

Almost surely, 2^47011500 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 47011500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76771968).

47011500 is an abundant number, since it is smaller than the sum of its proper divisors (106532436).

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

47011500 is a wasteful number, since it uses less digits than its factorization.

47011500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 47011500 is about 6856.4932728035. The cubic root of 47011500 is about 360.9120393015.

Adding to 47011500 its reverse (511074), we get a palindrome (47522574).

The spelling of 47011500 in words is "forty-seven million, eleven thousand, five hundred".