47143644 has 12 divisors (see below), whose sum is σ = 110001864. Its totient is φ = 15714544.

The previous prime is 47143639. The next prime is 47143673. The reversal of 47143644 is 44634174.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×47143644³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1964307 + ... + 1964330.

It is an arithmetic number, because the mean of its divisors is an integer number (9166822).

Almost surely, 2^47143644 is an apocalyptic number.

It is an amenable number.

47143644 is an abundant number, since it is smaller than the sum of its proper divisors (62858220).

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

47143644 is a wasteful number, since it uses less digits than its factorization.

47143644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928644 (or 3928642 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 47143644 is about 6866.1229234554. The cubic root of 47143644 is about 361.2498839014.

The spelling of 47143644 in words is "forty-seven million, one hundred forty-three thousand, six hundred forty-four".