3992251 has 2 divisors, whose sum is σ = 3992252. Its totient is φ = 3992250.

The previous prime is 3992243. The next prime is 3992257. The reversal of 3992251 is 1522993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3992251 - 2³ = 3992243 is a prime.

It is a Chen prime.

3992251 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3992257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996125 + 1996126.

It is an arithmetic number, because the mean of its divisors is an integer number (1996126).

Almost surely, 2^3992251 is an apocalyptic number.

3992251 is a deficient number, since it is larger than the sum of its proper divisors (1).

3992251 is an equidigital number, since it uses as much as digits as its factorization.

3992251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 31.

The square root of 3992251 is about 1998.0618108557. The cubic root of 3992251 is about 158.6375325090.

The spelling of 3992251 in words is "three million, nine hundred ninety-two thousand, two hundred fifty-one".