80684986 has 8 divisors (see below), whose sum is σ = 121065984. Its totient is φ = 40329660.

The previous prime is 80684957. The next prime is 80684987. The reversal of 80684986 is 68948608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (80684987) 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, 7341 + ... + 14671.

It is an arithmetic number, because the mean of its divisors is an integer number (15133248).

Almost surely, 2^80684986 is an apocalyptic number.

80684986 is a deficient number, since it is larger than the sum of its proper divisors (40380998).

80684986 is a wasteful number, since it uses less digits than its factorization.

80684986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12836.

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 80684986 is about 8982.4821736533. The cubic root of 80684986 is about 432.1132426319.

The spelling of 80684986 in words is "eighty million, six hundred eighty-four thousand, nine hundred eighty-six".