47331636 has 24 divisors (see below), whose sum is σ = 120480864. Its totient is φ = 14342880.

The previous prime is 47331619. The next prime is 47331643. The reversal of 47331636 is 63613374.

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

It is a junction number, because it is equal to n+sod(n) for n = 47331597 and 47331606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179155 + ... + 179418.

It is an arithmetic number, because the mean of its divisors is an integer number (5020036).

Almost surely, 2^47331636 is an apocalyptic number.

It is an amenable number.

47331636 is an abundant number, since it is smaller than the sum of its proper divisors (73149228).

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

47331636 is a wasteful number, since it uses less digits than its factorization.

47331636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358591 (or 358589 counting only the distinct ones).

The product of its digits is 27216, while the sum is 33.

The square root of 47331636 is about 6879.7991249745. The cubic root of 47331636 is about 361.7294255190.

The spelling of 47331636 in words is "forty-seven million, three hundred thirty-one thousand, six hundred thirty-six".