3971351 has 4 divisors (see below), whose sum is σ = 4063752. Its totient is φ = 3878952.

The previous prime is 3971333. The next prime is 3971377. The reversal of 3971351 is 1531793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3971351 - 2⁶ = 3971287 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971311) 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, 46136 + ... + 46221.

It is an arithmetic number, because the mean of its divisors is an integer number (1015938).

Almost surely, 2^3971351 is an apocalyptic number.

3971351 is a deficient number, since it is larger than the sum of its proper divisors (92401).

3971351 is an equidigital number, since it uses as much as digits as its factorization.

3971351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92400.

The product of its digits is 2835, while the sum is 29.

The square root of 3971351 is about 1992.8248794111. The cubic root of 3971351 is about 158.3602180263.

The spelling of 3971351 in words is "three million, nine hundred seventy-one thousand, three hundred fifty-one".