80041421 has 4 divisors (see below), whose sum is σ = 82801500. Its totient is φ = 77281344.

The previous prime is 80041417. The next prime is 80041463. The reversal of 80041421 is 12414008.

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 64722025 + 15319396 = 8045^2 + 3914^2 .

It is a cyclic number.

It is not a de Polignac number, because 80041421 - 2² = 80041417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80041393 and 80041402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80041021) 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, 1379996 + ... + 1380053.

It is an arithmetic number, because the mean of its divisors is an integer number (20700375).

Almost surely, 2^80041421 is an apocalyptic number.

It is an amenable number.

80041421 is a deficient number, since it is larger than the sum of its proper divisors (2760079).

80041421 is a wasteful number, since it uses less digits than its factorization.

80041421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760078.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 80041421 is about 8946.5871146488. The cubic root of 80041421 is about 430.9612908749.

Adding to 80041421 its reverse (12414008), we get a palindrome (92455429).

The spelling of 80041421 in words is "eighty million, forty-one thousand, four hundred twenty-one".