863974 has 8 divisors (see below), whose sum is σ = 1372248. Its totient is φ = 406560.

The previous prime is 863959. The next prime is 863983. The reversal of 863974 is 479368.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

863974 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12672 + ... + 12739.

It is an arithmetic number, because the mean of its divisors is an integer number (171531).

2⁸⁶³⁹⁷⁴ is an apocalyptic number.

863974 is a deficient number, since it is larger than the sum of its proper divisors (508274).

863974 is a wasteful number, since it uses less digits than its factorization.

863974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25430.

The product of its digits is 36288, while the sum is 37.

The square root of 863974 is about 929.5020172114. The cubic root of 863974 is about 95.2431077282.

The spelling of 863974 in words is "eight hundred sixty-three thousand, nine hundred seventy-four".