863345 has 16 divisors (see below), whose sum is σ = 1254528. Its totient is φ = 556800.

The previous prime is 863323. The next prime is 863363. The reversal of 863345 is 543368.

863345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 863345 - 2¹² = 859249 is a prime.

It is a super-3 number, since 3×863345³ = 1930520373335365875, which contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131 + ... + 1320.

It is an arithmetic number, because the mean of its divisors is an integer number (78408).

2⁸⁶³³⁴⁵ is an apocalyptic number.

863345 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

863345 is a deficient number, since it is larger than the sum of its proper divisors (391183).

863345 is a wasteful number, since it uses less digits than its factorization.

863345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480.

The product of its digits is 8640, while the sum is 29.

The square root of 863345 is about 929.1636023866. The cubic root of 863345 is about 95.2199887999.

The spelling of 863345 in words is "eight hundred sixty-three thousand, three hundred forty-five".