3972011 has 2 divisors, whose sum is σ = 3972012. Its totient is φ = 3972010.

The previous prime is 3971993. The next prime is 3972019. The reversal of 3972011 is 1102793.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3972011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3972019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1986005 + 1986006.

It is an arithmetic number, because the mean of its divisors is an integer number (1986006).

Almost surely, 2^3972011 is an apocalyptic number.

3972011 is a deficient number, since it is larger than the sum of its proper divisors (1).

3972011 is an equidigital number, since it uses as much as digits as its factorization.

3972011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 3972011 is about 1992.9904666104. The cubic root of 3972011 is about 158.3689901843.

The spelling of 3972011 in words is "three million, nine hundred seventy-two thousand, eleven".