80770013 has 4 divisors (see below), whose sum is σ = 80915580. Its totient is φ = 80624448.

The previous prime is 80769967. The next prime is 80770021. The reversal of 80770013 is 31007708.

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 6775609 + 73994404 = 2603^2 + 8602^2 .

It is a cyclic number.

It is not a de Polignac number, because 80770013 - 2⁸ = 80769757 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 (80770033) 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, 71948 + ... + 73061.

It is an arithmetic number, because the mean of its divisors is an integer number (20228895).

Almost surely, 2^80770013 is an apocalyptic number.

It is an amenable number.

80770013 is a deficient number, since it is larger than the sum of its proper divisors (145567).

80770013 is a wasteful number, since it uses less digits than its factorization.

80770013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145566.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 80770013 is about 8987.2138619263. The cubic root of 80770013 is about 432.2649783962.

The spelling of 80770013 in words is "eighty million, seven hundred seventy thousand, thirteen".