47028317 has 4 divisors (see below), whose sum is σ = 53746656. Its totient is φ = 40309980.

The previous prime is 47028263. The next prime is 47028323. The reversal of 47028317 is 71382074.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71382074 = 2 ⋅35691037.

It is a cyclic number.

It is not a de Polignac number, because 47028317 - 2⁸ = 47028061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47028337) 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, 3359159 + ... + 3359172.

It is an arithmetic number, because the mean of its divisors is an integer number (13436664).

Almost surely, 2^47028317 is an apocalyptic number.

It is an amenable number.

47028317 is a deficient number, since it is larger than the sum of its proper divisors (6718339).

47028317 is an equidigital number, since it uses as much as digits as its factorization.

47028317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6718338.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 47028317 is about 6857.7195189071. The cubic root of 47028317 is about 360.9550694408.

The spelling of 47028317 in words is "forty-seven million, twenty-eight thousand, three hundred seventeen".