840973 has 16 divisors (see below), whose sum is σ = 1050624. Its totient is φ = 656640.

The previous prime is 840967. The next prime is 840979. The reversal of 840973 is 379048.

It is a happy number.

840973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (840967) and next prime (840979).

It is a cyclic number.

It is not a de Polignac number, because 840973 - 2⁵ = 840941 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4308 + ... + 4498.

It is an arithmetic number, because the mean of its divisors is an integer number (65664).

2⁸⁴⁰⁹⁷³ is an apocalyptic number.

It is an amenable number.

840973 is a deficient number, since it is larger than the sum of its proper divisors (209651).

840973 is a wasteful number, since it uses less digits than its factorization.

840973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 840973 is about 917.0458003829. The cubic root of 840973 is about 94.3902966302.

It can be divided in two parts, 84097 and 3, that added together give a square (84100 = 290²).

The spelling of 840973 in words is "eight hundred forty thousand, nine hundred seventy-three".