80671522 has 4 divisors (see below), whose sum is σ = 121007286. Its totient is φ = 40335760.

The previous prime is 80671489. The next prime is 80671531. The reversal of 80671522 is 22517608.

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

It can be written as a sum of positive squares in only one way, i.e., 72948681 + 7722841 = 8541^2 + 2779^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20167879 + ... + 20167882.

Almost surely, 2^80671522 is an apocalyptic number.

80671522 is a deficient number, since it is larger than the sum of its proper divisors (40335764).

80671522 is a wasteful number, since it uses less digits than its factorization.

80671522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40335763.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 80671522 is about 8981.7326836196. The cubic root of 80671522 is about 432.0892055438.

The spelling of 80671522 in words is "eighty million, six hundred seventy-one thousand, five hundred twenty-two".