363943861 has 8 divisors (see below), whose sum is σ = 365592920. Its totient is φ = 362299392.

The previous prime is 363943859. The next prime is 363943891. The reversal of 363943861 is 168349363.

It can be written as a sum of positive squares in 4 ways, for example, as 68310225 + 295633636 = 8265^2 + 17194^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 363943861 - 2¹ = 363943859 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 (363943891) 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 7 ways as a sum of consecutive naturals, for example, 332431 + ... + 333523.

It is an arithmetic number, because the mean of its divisors is an integer number (45699115).

Almost surely, 2^363943861 is an apocalyptic number.

It is an amenable number.

363943861 is a deficient number, since it is larger than the sum of its proper divisors (1649059).

363943861 is a wasteful number, since it uses less digits than its factorization.

363943861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295.

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

The square root of 363943861 is about 19077.3127300467. The cubic root of 363943861 is about 713.9669898456.

The spelling of 363943861 in words is "three hundred sixty-three million, nine hundred forty-three thousand, eight hundred sixty-one".