3726491 has 2 divisors, whose sum is σ = 3726492. Its totient is φ = 3726490.

The previous prime is 3726469. The next prime is 3726511. The reversal of 3726491 is 1946273.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3726491 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3726421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1863245 + 1863246.

It is an arithmetic number, because the mean of its divisors is an integer number (1863246).

Almost surely, 2^3726491 is an apocalyptic number.

3726491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3726491 is an equidigital number, since it uses as much as digits as its factorization.

3726491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 3726491 is about 1930.4121321625. The cubic root of 3726491 is about 155.0362870297.

The spelling of 3726491 in words is "three million, seven hundred twenty-six thousand, four hundred ninety-one".