3986070 has 64 divisors (see below), whose sum is σ = 10699776. Its totient is φ = 942080.

The previous prime is 3986063. The next prime is 3986111. The reversal of 3986070 is 706893.

It is a happy number.

It is a super-4 number, since 4×3986070⁴ (a number of 28 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15382 + ... + 15638.

It is an arithmetic number, because the mean of its divisors is an integer number (167184).

Almost surely, 2^3986070 is an apocalyptic number.

3986070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3986070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5349888).

3986070 is an abundant number, since it is smaller than the sum of its proper divisors (6713706).

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

3986070 is a wasteful number, since it uses less digits than its factorization.

3986070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 3986070 is about 1996.5144627575. The cubic root of 3986070 is about 158.5556200689. Note that the first 3 decimals are identical.

The spelling of 3986070 in words is "three million, nine hundred eighty-six thousand, seventy".