3871973 has 4 divisors (see below), whose sum is σ = 4425120. Its totient is φ = 3318828.

The previous prime is 3871969. The next prime is 3872017. The reversal of 3871973 is 3791783.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3871973 - 2² = 3871969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276563 + ... + 276576.

It is an arithmetic number, because the mean of its divisors is an integer number (1106280).

Almost surely, 2^3871973 is an apocalyptic number.

It is an amenable number.

3871973 is a deficient number, since it is larger than the sum of its proper divisors (553147).

3871973 is an equidigital number, since it uses as much as digits as its factorization.

3871973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553146.

The product of its digits is 31752, while the sum is 38.

The square root of 3871973 is about 1967.7329595247. The cubic root of 3871973 is about 157.0281232160.

The spelling of 3871973 in words is "three million, eight hundred seventy-one thousand, nine hundred seventy-three".