3861960 has 32 divisors (see below), whose sum is σ = 11586240. Its totient is φ = 1029824.

The previous prime is 3861929. The next prime is 3861961. The reversal of 3861960 is 691683.

It is not an unprimeable number, because it can be changed into a prime (3861961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15972 + ... + 16211.

It is an arithmetic number, because the mean of its divisors is an integer number (362070).

Almost surely, 2^3861960 is an apocalyptic number.

3861960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3861960 is an abundant number, since it is smaller than the sum of its proper divisors (7724280).

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

3861960 is a wasteful number, since it uses less digits than its factorization.

3861960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32197 (or 32193 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 3861960 is about 1965.1870140015. The cubic root of 3861960 is about 156.8926470733.

It can be divided in two parts, 386 and 1960, that added together give a triangular number (2346 = T₆₈).

The spelling of 3861960 in words is "three million, eight hundred sixty-one thousand, nine hundred sixty".