363859 has 4 divisors (see below), whose sum is σ = 365904. Its totient is φ = 361816.

The previous prime is 363841. The next prime is 363871. The reversal of 363859 is 958363.

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 363859 - 2⁷ = 363731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (363809) 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, 727 + ... + 1120.

It is an arithmetic number, because the mean of its divisors is an integer number (91476).

2³⁶³⁸⁵⁹ is an apocalyptic number.

363859 is a deficient number, since it is larger than the sum of its proper divisors (2045).

363859 is a wasteful number, since it uses less digits than its factorization.

363859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044.

The product of its digits is 19440, while the sum is 34.

The square root of 363859 is about 603.2072612295. The cubic root of 363859 is about 71.3911493500.

The spelling of 363859 in words is "three hundred sixty-three thousand, eight hundred fifty-nine".