3967251 has 16 divisors (see below), whose sum is σ = 5501184. Its totient is φ = 2541024.

The previous prime is 3967241. The next prime is 3967253. The reversal of 3967251 is 1527693.

It is not a de Polignac number, because 3967251 - 2⁷ = 3967123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3967253) 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, 11260 + ... + 11606.

It is an arithmetic number, because the mean of its divisors is an integer number (343824).

Almost surely, 2^3967251 is an apocalyptic number.

3967251 is a deficient number, since it is larger than the sum of its proper divisors (1533933).

3967251 is a wasteful number, since it uses less digits than its factorization.

3967251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490.

The product of its digits is 11340, while the sum is 33.

The square root of 3967251 is about 1991.7959232813. The cubic root of 3967251 is about 158.3057025345.

The spelling of 3967251 in words is "three million, nine hundred sixty-seven thousand, two hundred fifty-one".