4413991 has 2 divisors, whose sum is σ = 4413992. Its totient is φ = 4413990.

The previous prime is 4413973. The next prime is 4414001. The reversal of 4413991 is 1993144.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4413991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4413971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2206995 + 2206996.

It is an arithmetic number, because the mean of its divisors is an integer number (2206996).

Almost surely, 2^4413991 is an apocalyptic number.

4413991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4413991 is an equidigital number, since it uses as much as digits as its factorization.

4413991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The square root of 4413991 is about 2100.9500232038. The cubic root of 4413991 is about 164.0377540485.

The spelling of 4413991 in words is "four million, four hundred thirteen thousand, nine hundred ninety-one".