80543684 has 12 divisors (see below), whose sum is σ = 151793964. Its totient is φ = 37173984.

The previous prime is 80543681. The next prime is 80543699. The reversal of 80543684 is 48634508.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49984900 + 30558784 = 7070^2 + 5528^2 .

It is not an unprimeable number, because it can be changed into a prime (80543681) 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, 774407 + ... + 774510.

It is an arithmetic number, because the mean of its divisors is an integer number (12649497).

Almost surely, 2^80543684 is an apocalyptic number.

It is an amenable number.

80543684 is a deficient number, since it is larger than the sum of its proper divisors (71250280).

80543684 is a wasteful number, since it uses less digits than its factorization.

80543684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548934 (or 1548932 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 80543684 is about 8974.6133064328. The cubic root of 80543684 is about 431.8608448123.

The spelling of 80543684 in words is "eighty million, five hundred forty-three thousand, six hundred eighty-four".