363939 has 4 divisors (see below), whose sum is σ = 485256. Its totient is φ = 242624.

The previous prime is 363917. The next prime is 363941. The reversal of 363939 is 939363.

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

It is a cyclic number.

It is not a de Polignac number, because 363939 - 2⁸ = 363683 is a prime.

It is a D-number.

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 363939.

It is not an unprimeable number, because it can be changed into a prime (363949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60654 + ... + 60659.

It is an arithmetic number, because the mean of its divisors is an integer number (121314).

2³⁶³⁹³⁹ is an apocalyptic number.

363939 is a deficient number, since it is larger than the sum of its proper divisors (121317).

363939 is a wasteful number, since it uses less digits than its factorization.

363939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121316.

The product of its digits is 13122, while the sum is 33.

The square root of 363939 is about 603.2735697841. The cubic root of 363939 is about 71.3963811142.

The spelling of 363939 in words is "three hundred sixty-three thousand, nine hundred thirty-nine".