47457443 has 4 divisors (see below), whose sum is σ = 51771768. Its totient is φ = 43143120.

The previous prime is 47457439. The next prime is 47457457. The reversal of 47457443 is 34475474.

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 47457443 - 2² = 47457439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47457397 and 47457406.

It is not an unprimeable number, because it can be changed into a prime (47457413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2157146 + ... + 2157167.

It is an arithmetic number, because the mean of its divisors is an integer number (12942942).

Almost surely, 2^47457443 is an apocalyptic number.

47457443 is a deficient number, since it is larger than the sum of its proper divisors (4314325).

47457443 is a wasteful number, since it uses less digits than its factorization.

47457443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314324.

The product of its digits is 188160, while the sum is 38.

The square root of 47457443 is about 6888.9362749266. The cubic root of 47457443 is about 362.0496330103.

The spelling of 47457443 in words is "forty-seven million, four hundred fifty-seven thousand, four hundred forty-three".