4809847 has 4 divisors (see below), whose sum is σ = 5496976. Its totient is φ = 4122720.

The previous prime is 4809811. The next prime is 4809859. The reversal of 4809847 is 7489084.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4809847 - 2⁷ = 4809719 is a prime.

It is a super-3 number, since 3×4809847³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4809347) 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, 343554 + ... + 343567.

It is an arithmetic number, because the mean of its divisors is an integer number (1374244).

Almost surely, 2^4809847 is an apocalyptic number.

4809847 is a deficient number, since it is larger than the sum of its proper divisors (687129).

4809847 is an equidigital number, since it uses as much as digits as its factorization.

4809847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687128.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 4809847 is about 2193.1363386712. The cubic root of 4809847 is about 168.8018054021.

The spelling of 4809847 in words is "four million, eight hundred nine thousand, eight hundred forty-seven".