80877941 has 4 divisors (see below), whose sum is σ = 81985932. Its totient is φ = 79769952.

The previous prime is 80877919. The next prime is 80877961. The reversal of 80877941 is 14977808.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18309841 + 62568100 = 4279^2 + 7910^2 .

It is a cyclic number.

It is not a de Polignac number, because 80877941 - 2¹⁸ = 80615797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80877892 and 80877901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80877961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553886 + ... + 554031.

It is an arithmetic number, because the mean of its divisors is an integer number (20496483).

Almost surely, 2^80877941 is an apocalyptic number.

It is an amenable number.

80877941 is a deficient number, since it is larger than the sum of its proper divisors (1107991).

80877941 is a wasteful number, since it uses less digits than its factorization.

80877941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107990.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 80877941 is about 8993.2163879226. The cubic root of 80877941 is about 432.4574290686.

It can be divided in two parts, 80877 and 941, that added together give a palindrome (81818).

The spelling of 80877941 in words is "eighty million, eight hundred seventy-seven thousand, nine hundred forty-one".