363816493 has 4 divisors (see below), whose sum is σ = 372690108. Its totient is φ = 354942880.

The previous prime is 363816491. The next prime is 363816521. The reversal of 363816493 is 394618363.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42224004 + 321592489 = 6498^2 + 17933^2 .

It is a cyclic number.

It is not a de Polignac number, because 363816493 - 2¹ = 363816491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (363816491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4436746 + ... + 4436827.

It is an arithmetic number, because the mean of its divisors is an integer number (93172527).

Almost surely, 2^363816493 is an apocalyptic number.

It is an amenable number.

363816493 is a deficient number, since it is larger than the sum of its proper divisors (8873615).

363816493 is an equidigital number, since it uses as much as digits as its factorization.

363816493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8873614.

The product of its digits is 279936, while the sum is 43.

The square root of 363816493 is about 19073.9742319214. The cubic root of 363816493 is about 713.8836920556.

The spelling of 363816493 in words is "three hundred sixty-three million, eight hundred sixteen thousand, four hundred ninety-three".