47636 has 6 divisors (see below), whose sum is σ = 83370. Its totient is φ = 23816.

The previous prime is 47629. The next prime is 47639. The reversal of 47636 is 63674.

47636 = T₁₂₃ + T₁₂₄ + ... + T₁₂₈.

It can be written as a sum of positive squares in only one way, i.e., 37636 + 10000 = 194^2 + 100^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5951 + ... + 5958.

It is an arithmetic number, because the mean of its divisors is an integer number (13895).

2⁴⁷⁶³⁶ is an apocalyptic number.

It is an amenable number.

47636 is a deficient number, since it is larger than the sum of its proper divisors (35734).

47636 is a wasteful number, since it uses less digits than its factorization.

47636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11913 (or 11911 counting only the distinct ones).

The product of its digits is 3024, while the sum is 26.

The square root of 47636 is about 218.2567295641. The cubic root of 47636 is about 36.2503131166.

It can be divided in two parts, 476 and 36, that added together give a 9-th power (512 = 2⁹).

The spelling of 47636 in words is "forty-seven thousand, six hundred thirty-six".