80215841 has 4 divisors (see below), whose sum is σ = 80236800. Its totient is φ = 80194884.

The previous prime is 80215813. The next prime is 80215859. The reversal of 80215841 is 14851208.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80215841 - 2¹⁸ = 79953697 is a prime.

It is a super-2 number, since 2×80215841² = 12869162294674562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80215801) 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, 2921 + ... + 12998.

It is an arithmetic number, because the mean of its divisors is an integer number (20059200).

Almost surely, 2^80215841 is an apocalyptic number.

It is an amenable number.

80215841 is a deficient number, since it is larger than the sum of its proper divisors (20959).

80215841 is a wasteful number, since it uses less digits than its factorization.

80215841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20958.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 80215841 is about 8956.3296611949. The cubic root of 80215841 is about 431.2741028046.

The spelling of 80215841 in words is "eighty million, two hundred fifteen thousand, eight hundred forty-one".