47818836 has 60 divisors (see below), whose sum is σ = 134635732. Its totient is φ = 14712192.

The previous prime is 47818829. The next prime is 47818843. The reversal of 47818836 is 63881874.

It is an interprime number because it is at equal distance from previous prime (47818829) and next prime (47818843).

It can be written as a sum of positive squares in 2 ways, for example, as 9922500 + 37896336 = 3150^2 + 6156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47818791 and 47818800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1465 + ... + 9888.

Almost surely, 2^47818836 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 47818836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67317866).

47818836 is an abundant number, since it is smaller than the sum of its proper divisors (86816896).

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

47818836 is a wasteful number, since it uses less digits than its factorization.

47818836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382 (or 11371 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 47818836 is about 6915.1164849191. The cubic root of 47818836 is about 362.9663243126.

The spelling of 47818836 in words is "forty-seven million, eight hundred eighteen thousand, eight hundred thirty-six".