80494213 has 4 divisors (see below), whose sum is σ = 81081900. Its totient is φ = 79906528.

The previous prime is 80494163. The next prime is 80494217. The reversal of 80494213 is 31249408.

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 17164449 + 63329764 = 4143^2 + 7958^2 .

It is a cyclic number.

It is not a de Polignac number, because 80494213 - 2²¹ = 78397061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80494217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293638 + ... + 293911.

It is an arithmetic number, because the mean of its divisors is an integer number (20270475).

Almost surely, 2^80494213 is an apocalyptic number.

It is an amenable number.

80494213 is a deficient number, since it is larger than the sum of its proper divisors (587687).

80494213 is a wasteful number, since it uses less digits than its factorization.

80494213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587686.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 80494213 is about 8971.8567197654. The cubic root of 80494213 is about 431.7724084821.

The spelling of 80494213 in words is "eighty million, four hundred ninety-four thousand, two hundred thirteen".