3487860 has 60 divisors (see below), whose sum is σ = 10946628. Its totient is φ = 929664.

The previous prime is 3487843. The next prime is 3487871. The reversal of 3487860 is 687843.

3487860 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 685584 + 2802276 = 828^2 + 1674^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 544 + ... + 2696.

Almost surely, 2^3487860 is an apocalyptic number.

3487860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3487860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5473314).

3487860 is an abundant number, since it is smaller than the sum of its proper divisors (7458768).

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

3487860 is a wasteful number, since it uses less digits than its factorization.

3487860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174 (or 2163 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 3487860 is about 1867.5813235305. The cubic root of 3487860 is about 151.6537014773.

The spelling of 3487860 in words is "three million, four hundred eighty-seven thousand, eight hundred sixty".