80593813 has 4 divisors (see below), whose sum is σ = 83372940. Its totient is φ = 77814688.

The previous prime is 80593811. The next prime is 80593829. The reversal of 80593813 is 31839508.

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 65901924 + 14691889 = 8118^2 + 3833^2 .

It is a cyclic number.

It is not a de Polignac number, because 80593813 - 2¹ = 80593811 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 (80593811) 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, 1389520 + ... + 1389577.

It is an arithmetic number, because the mean of its divisors is an integer number (20843235).

Almost surely, 2^80593813 is an apocalyptic number.

It is an amenable number.

80593813 is a deficient number, since it is larger than the sum of its proper divisors (2779127).

80593813 is a wasteful number, since it uses less digits than its factorization.

80593813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779126.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 80593813 is about 8977.4056942972. The cubic root of 80593813 is about 431.9504204789.

It can be divided in two parts, 80593 and 813, that added together give a triangular number (81406 = T₄₀₃).

The spelling of 80593813 in words is "eighty million, five hundred ninety-three thousand, eight hundred thirteen".