78841 has 6 divisors (see below), whose sum is σ = 91770. Its totient is φ = 67536.

The previous prime is 78839. The next prime is 78853. The reversal of 78841 is 14887.

It can be written as a sum of positive squares in only one way, i.e., 78400 + 441 = 280^2 + 21^2 .

It is not a de Polignac number, because 78841 - 2¹ = 78839 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78041) 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 in 5 ways as a sum of consecutive naturals, for example, 756 + ... + 853.

It is an arithmetic number, because the mean of its divisors is an integer number (15295).

2⁷⁸⁸⁴¹ is an apocalyptic number.

It is an amenable number.

78841 is a deficient number, since it is larger than the sum of its proper divisors (12929).

78841 is a wasteful number, since it uses less digits than its factorization.

78841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623 (or 1616 counting only the distinct ones).

The product of its digits is 1792, while the sum is 28.

The square root of 78841 is about 280.7863956818. The cubic root of 78841 is about 42.8795982851.

It can be divided in two parts, 78 and 841, that added together give a palindrome (919).

The spelling of 78841 in words is "seventy-eight thousand, eight hundred forty-one".