47645936 has 80 divisors (see below), whose sum is σ = 105284928. Its totient is φ = 20736000.

The previous prime is 47645929. The next prime is 47645959. The reversal of 47645936 is 63954674.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315461 + ... + 315611.

Almost surely, 2^47645936 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 47645936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52642464).

47645936 is an abundant number, since it is smaller than the sum of its proper divisors (57638992).

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

47645936 is a wasteful number, since it uses less digits than its factorization.

47645936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 244 counting only the distinct ones).

The product of its digits is 544320, while the sum is 44.

The square root of 47645936 is about 6902.6035667710. The cubic root of 47645936 is about 362.5283332590.

The spelling of 47645936 in words is "forty-seven million, six hundred forty-five thousand, nine hundred thirty-six".