3987270 has 48 divisors (see below), whose sum is σ = 11849760. Its totient is φ = 911232.

The previous prime is 3987259. The next prime is 3987271. The reversal of 3987270 is 727893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987271) 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 23 ways as a sum of consecutive naturals, for example, 2535 + ... + 3794.

It is an arithmetic number, because the mean of its divisors is an integer number (246870).

Almost surely, 2^3987270 is an apocalyptic number.

3987270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3987270 is an abundant number, since it is smaller than the sum of its proper divisors (7862490).

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

3987270 is a wasteful number, since it uses less digits than its factorization.

3987270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6349 (or 6346 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 3987270 is about 1996.8149638862. The cubic root of 3987270 is about 158.5715294444.

The spelling of 3987270 in words is "three million, nine hundred eighty-seven thousand, two hundred seventy".