4491787 has 2 divisors, whose sum is σ = 4491788. Its totient is φ = 4491786.

The previous prime is 4491769. The next prime is 4491793. The reversal of 4491787 is 7871944.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4491787 - 2⁷ = 4491659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4491887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2245893 + 2245894.

It is an arithmetic number, because the mean of its divisors is an integer number (2245894).

Almost surely, 2^4491787 is an apocalyptic number.

4491787 is a deficient number, since it is larger than the sum of its proper divisors (1).

4491787 is an equidigital number, since it uses as much as digits as its factorization.

4491787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 40.

The square root of 4491787 is about 2119.3836368152. The cubic root of 4491787 is about 164.9958615430.

The spelling of 4491787 in words is "four million, four hundred ninety-one thousand, seven hundred eighty-seven".