47280843 has 12 divisors (see below), whose sum is σ = 68356600. Its totient is φ = 31491936.

The previous prime is 47280833. The next prime is 47280851. The reversal of 47280843 is 34808274.

It is not a de Polignac number, because 47280843 - 2¹⁷ = 47149771 is a prime.

It is a super-2 number, since 2×47280843² = 4470956229581298, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47280798 and 47280807.

It is not an unprimeable number, because it can be changed into a prime (47280803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13983 + ... + 17031.

Almost surely, 2^47280843 is an apocalyptic number.

47280843 is a deficient number, since it is larger than the sum of its proper divisors (21075757).

47280843 is a wasteful number, since it uses less digits than its factorization.

47280843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778 (or 4775 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 47280843 is about 6876.1066745652. The cubic root of 47280843 is about 361.5999849693.

The spelling of 47280843 in words is "forty-seven million, two hundred eighty thousand, eight hundred forty-three".