840701 has 6 divisors (see below), whose sum is σ = 893370. Its totient is φ = 790976.

The previous prime is 840683. The next prime is 840703. The reversal of 840701 is 107048.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 511225 + 329476 = 715^2 + 574^2 .

It is a de Polignac number, because none of the positive numbers 2^k-840701 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 840701.

It is not an unprimeable number, because it can be changed into a prime (840703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1166 + ... + 1743.

It is an arithmetic number, because the mean of its divisors is an integer number (148895).

2⁸⁴⁰⁷⁰¹ is an apocalyptic number.

It is an amenable number.

840701 is a deficient number, since it is larger than the sum of its proper divisors (52669).

840701 is a wasteful number, since it uses less digits than its factorization.

840701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 840701 is about 916.8974860910. The cubic root of 840701 is about 94.3801191615.

Adding to 840701 its reverse (107048), we get a palindrome (947749).

The spelling of 840701 in words is "eight hundred forty thousand, seven hundred one".