3971299 has 2 divisors, whose sum is σ = 3971300. Its totient is φ = 3971298.

The previous prime is 3971287. The next prime is 3971309. The reversal of 3971299 is 9921793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3971299 - 2⁵ = 3971267 is a prime.

It is not a weakly prime, because it can be changed into another prime (3971239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1985649 + 1985650.

It is an arithmetic number, because the mean of its divisors is an integer number (1985650).

Almost surely, 2^3971299 is an apocalyptic number.

3971299 is a deficient number, since it is larger than the sum of its proper divisors (1).

3971299 is an equidigital number, since it uses as much as digits as its factorization.

3971299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 40.

The square root of 3971299 is about 1992.8118325622. The cubic root of 3971299 is about 158.3595268453.

The spelling of 3971299 in words is "three million, nine hundred seventy-one thousand, two hundred ninety-nine".