80333921 has 2 divisors, whose sum is σ = 80333922. Its totient is φ = 80333920.

The previous prime is 80333909. The next prime is 80333941. The reversal of 80333921 is 12933308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46240000 + 34093921 = 6800^2 + 5839^2 .

It is a cyclic number.

It is not a de Polignac number, because 80333921 - 2¹⁰ = 80332897 is a prime.

It is not a weakly prime, because it can be changed into another prime (80333941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40166960 + 40166961.

It is an arithmetic number, because the mean of its divisors is an integer number (40166961).

Almost surely, 2^80333921 is an apocalyptic number.

It is an amenable number.

80333921 is a deficient number, since it is larger than the sum of its proper divisors (1).

80333921 is an equidigital number, since it uses as much as digits as its factorization.

80333921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 80333921 is about 8962.9192231103. The cubic root of 80333921 is about 431.4856149708.

The spelling of 80333921 in words is "eighty million, three hundred thirty-three thousand, nine hundred twenty-one".