3871490 has 24 divisors (see below), whose sum is σ = 8107452. Its totient is φ = 1327200.

The previous prime is 3871481. The next prime is 3871499. The reversal of 3871490 is 941783.

3871490 = 1135² + 1136² + 1137².

It is an interprime number because it is at equal distance from previous prime (3871481) and next prime (3871499).

It can be written as a sum of positive squares in 2 ways, for example, as 3869089 + 2401 = 1967^2 + 49^2 .

It is not an unprimeable number, because it can be changed into a prime (3871499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3461 + ... + 4440.

Almost surely, 2^3871490 is an apocalyptic number.

3871490 is an abundant number, since it is smaller than the sum of its proper divisors (4235962).

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

3871490 is a wasteful number, since it uses less digits than its factorization.

3871490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7922 (or 7915 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 3871490 is about 1967.6102256290. The cubic root of 3871490 is about 157.0215935788.

The spelling of 3871490 in words is "three million, eight hundred seventy-one thousand, four hundred ninety".