8474845 has 8 divisors (see below), whose sum is σ = 10209240. Its totient is φ = 6753600.

The previous prime is 8474831. The next prime is 8474849. The reversal of 8474845 is 5484748.

8474845 = 2058² + 2059².

It can be written as a sum of positive squares in 4 ways, for example, as 116964 + 8357881 = 342^2 + 2891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8474845 - 2⁷ = 8474717 is a prime.

8474845 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8474798 and 8474807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8474849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1806 + ... + 4495.

It is an arithmetic number, because the mean of its divisors is an integer number (1276155).

Almost surely, 2^8474845 is an apocalyptic number.

8474845 is the 2059-th centered square number.

It is an amenable number.

8474845 is a deficient number, since it is larger than the sum of its proper divisors (1734395).

8474845 is a wasteful number, since it uses less digits than its factorization.

8474845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6575.

The product of its digits is 143360, while the sum is 40.

The square root of 8474845 is about 2911.1587040215. The cubic root of 8474845 is about 203.8812345354.

The spelling of 8474845 in words is "eight million, four hundred seventy-four thousand, eight hundred forty-five".