3720811 has 2 divisors, whose sum is σ = 3720812. Its totient is φ = 3720810.

The previous prime is 3720797. The next prime is 3720839. The reversal of 3720811 is 1180273.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3720811 - 2¹¹ = 3718763 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3720851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1860405 + 1860406.

It is an arithmetic number, because the mean of its divisors is an integer number (1860406).

Almost surely, 2^3720811 is an apocalyptic number.

3720811 is a deficient number, since it is larger than the sum of its proper divisors (1).

3720811 is an equidigital number, since it uses as much as digits as its factorization.

3720811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 3720811 is about 1928.9403826972. The cubic root of 3720811 is about 154.9574770623.

The spelling of 3720811 in words is "three million, seven hundred twenty thousand, eight hundred eleven".