80605379 has 4 divisors (see below), whose sum is σ = 80942880. Its totient is φ = 80267880.

The previous prime is 80605361. The next prime is 80605397. The reversal of 80605379 is 97350608.

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 (80605361) and next prime (80605397).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80605379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80605309) 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, 168392 + ... + 168869.

It is an arithmetic number, because the mean of its divisors is an integer number (20235720).

Almost surely, 2^80605379 is an apocalyptic number.

80605379 is a deficient number, since it is larger than the sum of its proper divisors (337501).

80605379 is a wasteful number, since it uses less digits than its factorization.

80605379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337500.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 80605379 is about 8978.0498439249. The cubic root of 80605379 is about 431.9710825265.

The spelling of 80605379 in words is "eighty million, six hundred five thousand, three hundred seventy-nine".