3871320 has 32 divisors (see below), whose sum is σ = 11614320. Its totient is φ = 1032320.

The previous prime is 3871319. The next prime is 3871321. The reversal of 3871320 is 231783.

It is an interprime number because it is at equal distance from previous prime (3871319) and next prime (3871321).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16011 + ... + 16250.

Almost surely, 2^3871320 is an apocalyptic number.

3871320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3871320 is an abundant number, since it is smaller than the sum of its proper divisors (7743000).

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

3871320 is a wasteful number, since it uses less digits than its factorization.

3871320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32275 (or 32271 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 3871320 is about 1967.5670255420. The cubic root of 3871320 is about 157.0192952336.

The spelling of 3871320 in words is "three million, eight hundred seventy-one thousand, three hundred twenty".