4591949 has 2 divisors, whose sum is σ = 4591950. Its totient is φ = 4591948.

The previous prime is 4591933. The next prime is 4591991. The reversal of 4591949 is 9491954.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2617924 + 1974025 = 1618^2 + 1405^2 .

It is a cyclic number.

It is not a de Polignac number, because 4591949 - 2⁴ = 4591933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4594949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2295974 + 2295975.

It is an arithmetic number, because the mean of its divisors is an integer number (2295975).

Almost surely, 2^4591949 is an apocalyptic number.

It is an amenable number.

4591949 is a deficient number, since it is larger than the sum of its proper divisors (1).

4591949 is an equidigital number, since it uses as much as digits as its factorization.

4591949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 41.

The square root of 4591949 is about 2142.8833379351. The cubic root of 4591949 is about 166.2132668010.

The spelling of 4591949 in words is "four million, five hundred ninety-one thousand, nine hundred forty-nine".