80684205 has 32 divisors (see below), whose sum is σ = 148076544. Its totient is φ = 36749376.

The previous prime is 80684171. The next prime is 80684209. The reversal of 80684205 is 50248608.

It is not a de Polignac number, because 80684205 - 2⁹ = 80683693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80684209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30984 + ... + 33486.

It is an arithmetic number, because the mean of its divisors is an integer number (4627392).

Almost surely, 2^80684205 is an apocalyptic number.

It is an amenable number.

80684205 is a deficient number, since it is larger than the sum of its proper divisors (67392339).

80684205 is a wasteful number, since it uses less digits than its factorization.

80684205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 80684205 is about 8982.4387000413. The cubic root of 80684205 is about 432.1118483967. Note that the first 3 decimals are identical.

The spelling of 80684205 in words is "eighty million, six hundred eighty-four thousand, two hundred five".