861063 has 16 divisors (see below), whose sum is σ = 1326336. Its totient is φ = 486720.

The previous prime is 861059. The next prime is 861079. The reversal of 861063 is 360168.

861063 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 861063 - 2² = 861059 is a prime.

861063 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2595 + ... + 2907.

It is an arithmetic number, because the mean of its divisors is an integer number (82896).

2⁸⁶¹⁰⁶³ is an apocalyptic number.

861063 is a deficient number, since it is larger than the sum of its proper divisors (465273).

861063 is a wasteful number, since it uses less digits than its factorization.

861063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 861063 is about 927.9348037443. The cubic root of 861063 is about 95.1360193766.

The spelling of 861063 in words is "eight hundred sixty-one thousand, sixty-three".