4072291 has 2 divisors, whose sum is σ = 4072292. Its totient is φ = 4072290.

The previous prime is 4072279. The next prime is 4072297. The reversal of 4072291 is 1922704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4072291 - 2⁵ = 4072259 is a prime.

4072291 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4072297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2036145 + 2036146.

It is an arithmetic number, because the mean of its divisors is an integer number (2036146).

Almost surely, 2^4072291 is an apocalyptic number.

4072291 is a deficient number, since it is larger than the sum of its proper divisors (1).

4072291 is an equidigital number, since it uses as much as digits as its factorization.

4072291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 4072291 is about 2017.9918235711. The cubic root of 4072291 is about 159.6906914994.

Adding to 4072291 its reverse (1922704), we get a palindrome (5994995).

The spelling of 4072291 in words is "four million, seventy-two thousand, two hundred ninety-one".