840716 has 12 divisors (see below), whose sum is σ = 1493688. Its totient is φ = 413952.

The previous prime is 840713. The next prime is 840727. The reversal of 840716 is 617048.

It is not an unprimeable number, because it can be changed into a prime (840713) 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, 1301 + ... + 1836.

It is an arithmetic number, because the mean of its divisors is an integer number (124474).

2⁸⁴⁰⁷¹⁶ is an apocalyptic number.

It is an amenable number.

840716 is a deficient number, since it is larger than the sum of its proper divisors (652972).

840716 is a wasteful number, since it uses less digits than its factorization.

840716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208 (or 3206 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 840716 is about 916.9056658130. The cubic root of 840716 is about 94.3806804762.

The spelling of 840716 in words is "eight hundred forty thousand, seven hundred sixteen".