8520434 has 32 divisors (see below), whose sum is σ = 14996016. Its totient is φ = 3594240.

The previous prime is 8520433. The next prime is 8520437. The reversal of 8520434 is 4340258.

It can be written as a sum of positive squares in 8 ways, for example, as 4853209 + 3667225 = 2203^2 + 1915^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (8520431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16094 + ... + 16614.

Almost surely, 2^8520434 is an apocalyptic number.

8520434 is a deficient number, since it is larger than the sum of its proper divisors (6475582).

8520434 is a wasteful number, since it uses less digits than its factorization.

8520434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 8520434 is about 2918.9782458936. The cubic root of 8520434 is about 204.2461625363.

The spelling of 8520434 in words is "eight million, five hundred twenty thousand, four hundred thirty-four".