80684507 has 4 divisors (see below), whose sum is σ = 84931080. Its totient is φ = 76437936.

The previous prime is 80684489. The next prime is 80684509. The reversal of 80684507 is 70548608.

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

It is a cyclic number.

It is not a de Polignac number, because 80684507 - 2¹⁴ = 80668123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80684509) 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, 2123258 + ... + 2123295.

It is an arithmetic number, because the mean of its divisors is an integer number (21232770).

Almost surely, 2^80684507 is an apocalyptic number.

80684507 is a deficient number, since it is larger than the sum of its proper divisors (4246573).

80684507 is a wasteful number, since it uses less digits than its factorization.

80684507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246572.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 80684507 is about 8982.4555106051. The cubic root of 80684507 is about 432.1123875258.

The spelling of 80684507 in words is "eighty million, six hundred eighty-four thousand, five hundred seven".