4014391 has 2 divisors, whose sum is σ = 4014392. Its totient is φ = 4014390.

The previous prime is 4014347. The next prime is 4014401. The reversal of 4014391 is 1934104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4014391 - 2²¹ = 1917239 is a prime.

It is a super-2 number, since 2×4014391² = 32230670201762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4014331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2007195 + 2007196.

It is an arithmetic number, because the mean of its divisors is an integer number (2007196).

Almost surely, 2^4014391 is an apocalyptic number.

4014391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4014391 is an equidigital number, since it uses as much as digits as its factorization.

4014391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 4014391 is about 2003.5945198567. The cubic root of 4014391 is about 158.9302464231.

Adding to 4014391 its reverse (1934104), we get a palindrome (5948495).

The spelling of 4014391 in words is "four million, fourteen thousand, three hundred ninety-one".