47243646 has 48 divisors (see below), whose sum is σ = 110202768. Its totient is φ = 14572800.

The previous prime is 47243611. The next prime is 47243657. The reversal of 47243646 is 64634274.

47243646 is a `hidden beast` number, since 4 + 7 + 2 + 4 + 3 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 47243646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17401 + ... + 19931.

It is an arithmetic number, because the mean of its divisors is an integer number (2295891).

Almost surely, 2^47243646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47243646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55101384).

47243646 is an abundant number, since it is smaller than the sum of its proper divisors (62959122).

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

47243646 is a wasteful number, since it uses less digits than its factorization.

47243646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617 (or 2614 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 47243646 is about 6873.4013414030. The cubic root of 47243646 is about 361.5051335623.

The spelling of 47243646 in words is "forty-seven million, two hundred forty-three thousand, six hundred forty-six".