80529700 has 18 divisors (see below), whose sum is σ = 174749666. Its totient is φ = 32211840.

The previous prime is 80529689. The next prime is 80529703. The reversal of 80529700 is 792508.

It can be written as a sum of positive squares in 3 ways, for example, as 12236004 + 68293696 = 3498^2 + 8264^2 .

It is not an unprimeable number, because it can be changed into a prime (80529703) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 402549 + ... + 402748.

Almost surely, 2^80529700 is an apocalyptic number.

It is an amenable number.

80529700 is an abundant number, since it is smaller than the sum of its proper divisors (94219966).

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

80529700 is a wasteful number, since it uses less digits than its factorization.

80529700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805311 (or 805304 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 80529700 is about 8973.8341861213. The cubic root of 80529700 is about 431.8358501291.

The spelling of 80529700 in words is "eighty million, five hundred twenty-nine thousand, seven hundred".