3856530 has 16 divisors (see below), whose sum is σ = 9255744. Its totient is φ = 1028400.

The previous prime is 3856519. The next prime is 3856537. The reversal of 3856530 is 356583.

3856530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 128551 = 3856530 / (3 + 8 + 5 + 6 + 5 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (3856537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64246 + ... + 64305.

It is an arithmetic number, because the mean of its divisors is an integer number (578484).

Almost surely, 2^3856530 is an apocalyptic number.

3856530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3856530 is an abundant number, since it is smaller than the sum of its proper divisors (5399214).

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

3856530 is a wasteful number, since it uses less digits than its factorization.

3856530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128561.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 3856530 is about 1963.8049801342. The cubic root of 3856530 is about 156.8190810893.

The spelling of 3856530 in words is "three million, eight hundred fifty-six thousand, five hundred thirty".