3642791 has 2 divisors, whose sum is σ = 3642792. Its totient is φ = 3642790.

The previous prime is 3642739. The next prime is 3642817. The reversal of 3642791 is 1972463.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3642791 - 2¹⁰ = 3641767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3642701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821395 + 1821396.

It is an arithmetic number, because the mean of its divisors is an integer number (1821396).

Almost surely, 2^3642791 is an apocalyptic number.

3642791 is a deficient number, since it is larger than the sum of its proper divisors (1).

3642791 is an equidigital number, since it uses as much as digits as its factorization.

3642791 is an evil number, because the sum of its binary digits is even.

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

The square root of 3642791 is about 1908.6097034229. The cubic root of 3642791 is about 153.8667397261.

The spelling of 3642791 in words is "three million, six hundred forty-two thousand, seven hundred ninety-one".