80290321 has 4 divisors (see below), whose sum is σ = 81488752. Its totient is φ = 79091892.

The previous prime is 80290319. The next prime is 80290349. The reversal of 80290321 is 12309208.

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 not a de Polignac number, because 80290321 - 2¹ = 80290319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80290391) 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, 599115 + ... + 599248.

It is an arithmetic number, because the mean of its divisors is an integer number (20372188).

Almost surely, 2^80290321 is an apocalyptic number.

It is an amenable number.

80290321 is a deficient number, since it is larger than the sum of its proper divisors (1198431).

80290321 is a wasteful number, since it uses less digits than its factorization.

80290321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198430.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 80290321 is about 8960.4866497306. The cubic root of 80290321 is about 431.4075401175.

Adding to 80290321 its reverse (12309208), we get a palindrome (92599529).

The spelling of 80290321 in words is "eighty million, two hundred ninety thousand, three hundred twenty-one".