8420075 has 6 divisors (see below), whose sum is σ = 10440924. Its totient is φ = 6736040.

The previous prime is 8420051. The next prime is 8420119. The reversal of 8420075 is 5700248.

8420075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8420075 - 2¹⁴ = 8403691 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168377 + ... + 168426.

It is an arithmetic number, because the mean of its divisors is an integer number (1740154).

Almost surely, 2^8420075 is an apocalyptic number.

8420075 is a deficient number, since it is larger than the sum of its proper divisors (2020849).

8420075 is a wasteful number, since it uses less digits than its factorization.

8420075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336813 (or 336808 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 8420075 is about 2901.7365490340. The cubic root of 8420075 is about 203.4410802829.

The spelling of 8420075 in words is "eight million, four hundred twenty thousand, seventy-five".