80817902 has 16 divisors (see below), whose sum is σ = 132838272. Its totient is φ = 36571320.

The previous prime is 80817901. The next prime is 80817907. The reversal of 80817902 is 20971808.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80817901) 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, 3098 + ... + 13085.

It is an arithmetic number, because the mean of its divisors is an integer number (8302392).

Almost surely, 2^80817902 is an apocalyptic number.

80817902 is a deficient number, since it is larger than the sum of its proper divisors (52020370).

80817902 is a wasteful number, since it uses less digits than its factorization.

80817902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16423.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 80817902 is about 8989.8777522278. The cubic root of 80817902 is about 432.3503923055.

The spelling of 80817902 in words is "eighty million, eight hundred seventeen thousand, nine hundred two".