47043751 has 4 divisors (see below), whose sum is σ = 47192472. Its totient is φ = 46895032.

The previous prime is 47043691. The next prime is 47043767. The reversal of 47043751 is 15734074.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47043751 - 2⁹ = 47043239 is a prime.

It is a super-2 number, since 2×47043751² = 4426229016300002, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47047751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73885 + ... + 74518.

It is an arithmetic number, because the mean of its divisors is an integer number (11798118).

Almost surely, 2^47043751 is an apocalyptic number.

47043751 is a deficient number, since it is larger than the sum of its proper divisors (148721).

47043751 is a wasteful number, since it uses less digits than its factorization.

47043751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148720.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 47043751 is about 6858.8447277949. The cubic root of 47043751 is about 360.9945518319.

The spelling of 47043751 in words is "forty-seven million, forty-three thousand, seven hundred fifty-one".