863740 has 24 divisors (see below), whose sum is σ = 1910160. Its totient is φ = 327168.

The previous prime is 863729. The next prime is 863743. The reversal of 863740 is 47368.

It is a junction number, because it is equal to n+sod(n) for n = 863699 and 863708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863743) by changing a digit.

863740 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757 + ... + 1516.

It is an arithmetic number, because the mean of its divisors is an integer number (79590).

2⁸⁶³⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

863740 is an abundant number, since it is smaller than the sum of its proper divisors (1046420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

863740 is a wasteful number, since it uses less digits than its factorization.

863740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301 (or 2299 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 863740 is about 929.3761348345. The cubic root of 863740 is about 95.2345083570.

The spelling of 863740 in words is "eight hundred sixty-three thousand, seven hundred forty".