840974 has 8 divisors (see below), whose sum is σ = 1268400. Its totient is φ = 418176.

The previous prime is 840967. The next prime is 840979. The reversal of 840974 is 479048.

It is a happy number.

840974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 840974.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 840974.

It is not an unprimeable number, because it can be changed into a prime (840979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659 + ... + 1454.

It is an arithmetic number, because the mean of its divisors is an integer number (158550).

2⁸⁴⁰⁹⁷⁴ is an apocalyptic number.

840974 is a deficient number, since it is larger than the sum of its proper divisors (427426).

840974 is a wasteful number, since it uses less digits than its factorization.

840974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 840974 is about 917.0463456118. The cubic root of 840974 is about 94.3903340433.

The spelling of 840974 in words is "eight hundred forty thousand, nine hundred seventy-four".