4060391 has 2 divisors, whose sum is σ = 4060392. Its totient is φ = 4060390.

The previous prime is 4060387. The next prime is 4060403. The reversal of 4060391 is 1930604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4060391 - 2² = 4060387 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4060291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2030195 + 2030196.

It is an arithmetic number, because the mean of its divisors is an integer number (2030196).

Almost surely, 2^4060391 is an apocalyptic number.

4060391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4060391 is an equidigital number, since it uses as much as digits as its factorization.

4060391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 4060391 is about 2015.0411906460. The cubic root of 4060391 is about 159.5349909965.

Adding to 4060391 its reverse (1930604), we get a palindrome (5990995).

The spelling of 4060391 in words is "four million, sixty thousand, three hundred ninety-one".