80671436 has 12 divisors (see below), whose sum is σ = 144618600. Its totient is φ = 39351840.

The previous prime is 80671429. The next prime is 80671439. The reversal of 80671436 is 63417608.

It is a junction number, because it is equal to n+sod(n) for n = 80671396 and 80671405.

It is not an unprimeable number, because it can be changed into a prime (80671439) 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, 245786 + ... + 246113.

It is an arithmetic number, because the mean of its divisors is an integer number (12051550).

Almost surely, 2^80671436 is an apocalyptic number.

It is an amenable number.

80671436 is a deficient number, since it is larger than the sum of its proper divisors (63947164).

80671436 is a wasteful number, since it uses less digits than its factorization.

80671436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491944 (or 491942 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 80671436 is about 8981.7278961233. The cubic root of 80671436 is about 432.0890520006.

The spelling of 80671436 in words is "eighty million, six hundred seventy-one thousand, four hundred thirty-six".