363991163 has 8 divisors (see below), whose sum is σ = 375228720. Its totient is φ = 352827360.

The previous prime is 363991141. The next prime is 363991219. The reversal of 363991163 is 361199363.

It is a happy number.

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 363991163 - 2¹⁸ = 363729019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 363991163.

It is not an unprimeable number, because it can be changed into a prime (363993163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8333 + ... + 28238.

It is an arithmetic number, because the mean of its divisors is an integer number (46903590).

Almost surely, 2^363991163 is an apocalyptic number.

363991163 is a deficient number, since it is larger than the sum of its proper divisors (11237557).

363991163 is a wasteful number, since it uses less digits than its factorization.

363991163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36877.

The product of its digits is 78732, while the sum is 41.

The square root of 363991163 is about 19078.5524346057. The cubic root of 363991163 is about 713.9979200770.

The spelling of 363991163 in words is "three hundred sixty-three million, nine hundred ninety-one thousand, one hundred sixty-three".