82080802 has 4 divisors (see below), whose sum is σ = 123121206. Its totient is φ = 41040400.

The previous prime is 82080799. The next prime is 82080809. The reversal of 82080802 is 20808028.

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

It can be written as a sum of positive squares in only one way, i.e., 44368921 + 37711881 = 6661^2 + 6141^2 .

It is not an unprimeable number, because it can be changed into a prime (82080809) 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 as a sum of consecutive naturals, namely, 20520199 + ... + 20520202.

Almost surely, 2^82080802 is an apocalyptic number.

82080802 is a deficient number, since it is larger than the sum of its proper divisors (41040404).

82080802 is a wasteful number, since it uses less digits than its factorization.

82080802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41040403.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 82080802 is about 9059.8455836730. The cubic root of 82080802 is about 434.5908020530.

The spelling of 82080802 in words is "eighty-two million, eighty thousand, eight hundred two".