80639341 has 4 divisors (see below), whose sum is σ = 82160892. Its totient is φ = 79117792.

The previous prime is 80639327. The next prime is 80639353. The reversal of 80639341 is 14393608.

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 57078025 + 23561316 = 7555^2 + 4854^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80639341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80639297 and 80639306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80639941) 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, 760696 + ... + 760801.

It is an arithmetic number, because the mean of its divisors is an integer number (20540223).

Almost surely, 2^80639341 is an apocalyptic number.

It is an amenable number.

80639341 is a deficient number, since it is larger than the sum of its proper divisors (1521551).

80639341 is a wasteful number, since it uses less digits than its factorization.

80639341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521550.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 80639341 is about 8979.9410354412. The cubic root of 80639341 is about 432.0317424235.

The spelling of 80639341 in words is "eighty million, six hundred thirty-nine thousand, three hundred forty-one".