840614 has 4 divisors (see below), whose sum is σ = 1260924. Its totient is φ = 420306.

The previous prime is 840611. The next prime is 840643. The reversal of 840614 is 416048.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 840614.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210152 + ... + 210155.

It is an arithmetic number, because the mean of its divisors is an integer number (315231).

2⁸⁴⁰⁶¹⁴ is an apocalyptic number.

840614 is a deficient number, since it is larger than the sum of its proper divisors (420310).

840614 is a wasteful number, since it uses less digits than its factorization.

840614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420309.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 840614 is about 916.8500422643. The cubic root of 840614 is about 94.3768634049.

The spelling of 840614 in words is "eight hundred forty thousand, six hundred fourteen".