8604020 has 24 divisors (see below), whose sum is σ = 18411624. Its totient is φ = 3376256.

The previous prime is 8603963. The next prime is 8604059. The reversal of 8604020 is 204068.

It can be written as a sum of positive squares in 4 ways, for example, as 3341584 + 5262436 = 1828^2 + 2294^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 8603983 and 8604001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2999 + ... + 5118.

It is an arithmetic number, because the mean of its divisors is an integer number (767151).

Almost surely, 2^8604020 is an apocalyptic number.

It is an amenable number.

8604020 is an abundant number, since it is smaller than the sum of its proper divisors (9807604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8604020 is a wasteful number, since it uses less digits than its factorization.

8604020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8179 (or 8177 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 8604020 is about 2933.2609839563. The cubic root of 8604020 is about 204.9118796358.

Adding to 8604020 its reverse (204068), we get a palindrome (8808088).

The spelling of 8604020 in words is "eight million, six hundred four thousand, twenty".