8539420 has 12 divisors (see below), whose sum is σ = 17932824. Its totient is φ = 3415760.

The previous prime is 8539409. The next prime is 8539429. The reversal of 8539420 is 249358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8539429) 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, 213466 + ... + 213505.

It is an arithmetic number, because the mean of its divisors is an integer number (1494402).

Almost surely, 2^8539420 is an apocalyptic number.

It is an amenable number.

8539420 is an abundant number, since it is smaller than the sum of its proper divisors (9393404).

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

8539420 is a wasteful number, since it uses less digits than its factorization.

8539420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426980 (or 426978 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 8539420 is about 2922.2286015984. The cubic root of 8539420 is about 204.3977565710.

The spelling of 8539420 in words is "eight million, five hundred thirty-nine thousand, four hundred twenty".