80684537 has 8 divisors (see below), whose sum is σ = 83407872. Its totient is φ = 77968800.

The previous prime is 80684521. The next prime is 80684561. The reversal of 80684537 is 73548608.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 80684537 - 2⁴ = 80684521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80684494 and 80684503.

It is not an unprimeable number, because it can be changed into a prime (80684587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26813 + ... + 29669.

It is an arithmetic number, because the mean of its divisors is an integer number (10425984).

Almost surely, 2^80684537 is an apocalyptic number.

It is an amenable number.

80684537 is a deficient number, since it is larger than the sum of its proper divisors (2723335).

80684537 is a wasteful number, since it uses less digits than its factorization.

80684537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 80684537 is about 8982.4571805269. The cubic root of 80684537 is about 432.1124410816.

The spelling of 80684537 in words is "eighty million, six hundred eighty-four thousand, five hundred thirty-seven".