861363 has 6 divisors (see below), whose sum is σ = 1244204. Its totient is φ = 574236.

The previous prime is 861361. The next prime is 861391. The reversal of 861363 is 363168.

861363 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 861363 - 2¹ = 861361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (861361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47845 + ... + 47862.

2⁸⁶¹³⁶³ is an apocalyptic number.

861363 is a deficient number, since it is larger than the sum of its proper divisors (382841).

861363 is a wasteful number, since it uses less digits than its factorization.

861363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95713 (or 95710 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 861363 is about 928.0964389545. The cubic root of 861363 is about 95.1470667649.

Adding to 861363 its product of digits (2592), we get a triangular number (863955 = T₁₃₁₄).

The spelling of 861363 in words is "eight hundred sixty-one thousand, three hundred sixty-three".