80535636 has 36 divisors (see below), whose sum is σ = 204486100. Its totient is φ = 26725248.

The previous prime is 80535629. The next prime is 80535671. The reversal of 80535636 is 63653508.

It can be written as a sum of positive squares in 2 ways, for example, as 54464400 + 26071236 = 7380^2 + 5106^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 80535636.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3360 + ... + 13128.

Almost surely, 2^80535636 is an apocalyptic number.

It is an amenable number.

80535636 is an abundant number, since it is smaller than the sum of its proper divisors (123950464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80535636 is a wasteful number, since it uses less digits than its factorization.

80535636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008 (or 10003 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 80535636 is about 8974.1649193671. The cubic root of 80535636 is about 431.8464603537.

It can be divided in two parts, 8053 and 5636, that added together give a square (13689 = 117²).

The spelling of 80535636 in words is "eighty million, five hundred thirty-five thousand, six hundred thirty-six".