364449389 has 2 divisors, whose sum is σ = 364449390. Its totient is φ = 364449388.

The previous prime is 364449347. The next prime is 364449391. The reversal of 364449389 is 983944463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 279993289 + 84456100 = 16733^2 + 9190^2 .

It is a cyclic number.

It is not a de Polignac number, because 364449389 - 2²⁰ = 363400813 is a prime.

Together with 364449391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (364448389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182224694 + 182224695.

It is an arithmetic number, because the mean of its divisors is an integer number (182224695).

Almost surely, 2^364449389 is an apocalyptic number.

It is an amenable number.

364449389 is a deficient number, since it is larger than the sum of its proper divisors (1).

364449389 is an equidigital number, since it uses as much as digits as its factorization.

364449389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 50.

The square root of 364449389 is about 19090.5575874567. The cubic root of 364449389 is about 714.2974101456.

The spelling of 364449389 in words is "three hundred sixty-four million, four hundred forty-nine thousand, three hundred eighty-nine".