4372091 has 2 divisors, whose sum is σ = 4372092. Its totient is φ = 4372090.

The previous prime is 4372087. The next prime is 4372133. The reversal of 4372091 is 1902734.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4372091 - 2² = 4372087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4372091.

It is not a weakly prime, because it can be changed into another prime (4372051) 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, 2186045 + 2186046.

It is an arithmetic number, because the mean of its divisors is an integer number (2186046).

Almost surely, 2^4372091 is an apocalyptic number.

4372091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4372091 is an equidigital number, since it uses as much as digits as its factorization.

4372091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 4372091 is about 2090.9545666991. The cubic root of 4372091 is about 163.5170578268.

The spelling of 4372091 in words is "four million, three hundred seventy-two thousand, ninety-one".