80670479 has 4 divisors (see below), whose sum is σ = 81874584. Its totient is φ = 79466376.

The previous prime is 80670461. The next prime is 80670481. The reversal of 80670479 is 97407608.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80670479 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 (80670449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601952 + ... + 602085.

It is an arithmetic number, because the mean of its divisors is an integer number (20468646).

Almost surely, 2^80670479 is an apocalyptic number.

80670479 is a deficient number, since it is larger than the sum of its proper divisors (1204105).

80670479 is a wasteful number, since it uses less digits than its factorization.

80670479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204104.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 80670479 is about 8981.6746211383. The cubic root of 80670479 is about 432.0873433791.

The spelling of 80670479 in words is "eighty million, six hundred seventy thousand, four hundred seventy-nine".