47457843 has 8 divisors (see below), whose sum is σ = 64471248. Its totient is φ = 31041504.

The previous prime is 47457821. The next prime is 47457859. The reversal of 47457843 is 34875474.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47457843 - 2⁸ = 47457587 is a prime.

It is a super-3 number, since 3×47457843³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47457795 and 47457804.

It is not an unprimeable number, because it can be changed into a prime (47457043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149080 + ... + 149397.

It is an arithmetic number, because the mean of its divisors is an integer number (8058906).

Almost surely, 2^47457843 is an apocalyptic number.

47457843 is a deficient number, since it is larger than the sum of its proper divisors (17013405).

47457843 is a wasteful number, since it uses less digits than its factorization.

47457843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298533.

The product of its digits is 376320, while the sum is 42.

The square root of 47457843 is about 6888.9653069238. The cubic root of 47457843 is about 362.0506501984.

The spelling of 47457843 in words is "forty-seven million, four hundred fifty-seven thousand, eight hundred forty-three".