47280347 has 4 divisors (see below), whose sum is σ = 47348496. Its totient is φ = 47212200.

The previous prime is 47280329. The next prime is 47280367. The reversal of 47280347 is 74308274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74308274 = 2 ⋅37154137.

It is a cyclic number.

It is not a de Polignac number, because 47280347 - 2⁶ = 47280283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47280367) 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, 33023 + ... + 34424.

It is an arithmetic number, because the mean of its divisors is an integer number (11837124).

Almost surely, 2^47280347 is an apocalyptic number.

47280347 is a deficient number, since it is larger than the sum of its proper divisors (68149).

47280347 is an equidigital number, since it uses as much as digits as its factorization.

47280347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68148.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 47280347 is about 6876.0706075491. The cubic root of 47280347 is about 361.5987205092.

The spelling of 47280347 in words is "forty-seven million, two hundred eighty thousand, three hundred forty-seven".