8505740 has 24 divisors (see below), whose sum is σ = 18039840. Its totient is φ = 3368448.

The previous prime is 8505727. The next prime is 8505767. The reversal of 8505740 is 475058.

It is a super-2 number, since 2×8505740² = 144695225895200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

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, 5 + ... + 4124.

It is an arithmetic number, because the mean of its divisors is an integer number (751660).

Almost surely, 2^8505740 is an apocalyptic number.

It is an amenable number.

8505740 is an abundant number, since it is smaller than the sum of its proper divisors (9534100).

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

8505740 is a wasteful number, since it uses less digits than its factorization.

8505740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4241 (or 4239 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 8505740 is about 2916.4601831673. The cubic root of 8505740 is about 204.1286833871.

The spelling of 8505740 in words is "eight million, five hundred five thousand, seven hundred forty".