3971451 has 16 divisors (see below), whose sum is σ = 5822208. Its totient is φ = 2388000.

The previous prime is 3971431. The next prime is 3971459. The reversal of 3971451 is 1541793.

It is a de Polignac number, because none of the positive numbers 2^k-3971451 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3971459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4585 + ... + 5381.

It is an arithmetic number, because the mean of its divisors is an integer number (363888).

Almost surely, 2^3971451 is an apocalyptic number.

3971451 is a deficient number, since it is larger than the sum of its proper divisors (1850757).

3971451 is a wasteful number, since it uses less digits than its factorization.

3971451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962.

The product of its digits is 3780, while the sum is 30.

The square root of 3971451 is about 1992.8499692651. The cubic root of 3971451 is about 158.3615472036.

The spelling of 3971451 in words is "three million, nine hundred seventy-one thousand, four hundred fifty-one".