47136804 has 72 divisors (see below), whose sum is σ = 129985632. Its totient is φ = 13178880.

The previous prime is 47136799. The next prime is 47136809. The reversal of 47136804 is 40863174.

It is an interprime number because it is at equal distance from previous prime (47136799) and next prime (47136809).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47136809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21252 + ... + 23364.

It is an arithmetic number, because the mean of its divisors is an integer number (1805356).

Almost surely, 2^47136804 is an apocalyptic number.

47136804 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47136804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64992816).

47136804 is an abundant number, since it is smaller than the sum of its proper divisors (82848828).

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

47136804 is a wasteful number, since it uses less digits than its factorization.

47136804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157 (or 2142 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 47136804 is about 6865.6248076923. The cubic root of 47136804 is about 361.2324119900.

Adding to 47136804 its reverse (40863174), we get a palindrome (87999978).

The spelling of 47136804 in words is "forty-seven million, one hundred thirty-six thousand, eight hundred four".