80740013 has 4 divisors (see below), whose sum is σ = 80778588. Its totient is φ = 80701440.

The previous prime is 80740007. The next prime is 80740019. The reversal of 80740013 is 31004708.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (80740007) and next prime (80740019).

It can be written as a sum of positive squares in 2 ways, for example, as 38775529 + 41964484 = 6227^2 + 6478^2 .

It is a cyclic number.

It is not a de Polignac number, because 80740013 - 2²² = 76545709 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 (80740019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15956 + ... + 20397.

It is an arithmetic number, because the mean of its divisors is an integer number (20194647).

Almost surely, 2^80740013 is an apocalyptic number.

It is an amenable number.

80740013 is a deficient number, since it is larger than the sum of its proper divisors (38575).

80740013 is a wasteful number, since it uses less digits than its factorization.

80740013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38574.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 80740013 is about 8985.5446690782. The cubic root of 80740013 is about 432.2114537660.

The spelling of 80740013 in words is "eighty million, seven hundred forty thousand, thirteen".